Below is a list of Reference Literature that we currently have available on CD-ROM. With these references, collectors and dealers can identify and evaluate thousands of different postmarks.


We accept payment by check or money order in U.S. funds.

Before the price of each item is a 6-digit item number. When ordering, please indicate the item number and a few words from the title.

To place orders by regular mail, send your check or money order (in U.S. funds) payable to:
Jim Mehrer
2405-30th Street
Rock Island, IL 61201


ILLINOIS RESIDENTS: Add 8.5% state sales tax to your order.

INTERNATIONAL ORDERS: Before ordering, please email us for the shipping charge.

We do not accept CHARGE CARDS, and HERE'S WHY: Card companies would take about 5 percent off the top of whatever we sold. We don't feel like giving it to them, and we would rather not raise all of our prices just for the sake of handling charge cards. (Before you write and tell us that we can negotiate a better deal than 5 percent, we know that. But whether it's 3 or 4 or 5 percent, we still don't feel like raising the prices to "cover" it, as they say.) We were accepting payments through an online payment service for awhile, but then they started charging for their services, too. Maybe things will change someday.

We regret that we're unable to send "bill with" orders, but that just adds to the paperwork, and we've got plenty to do without the extra load. Exceptions: If you're a long-time customer of ours, and you're experiencing some kind of major "reference literature emergency" that won't allow you to wait a couple of extra days, give us a phone call (309 / 786-6539) and we'll discuss the possibilities.


United States Post Offices on CD-ROM. (Mehrer/2001): Combined for the first time on CD-ROM: the most complete lists currently available of Post Offices that have operated in the United States!* Contains: Combined alphabetical list of all Post Offices from all states (showing towns, states, years of operation & counties); individual lists of all 50 states plus Indian Territory & District of Columbia, showing towns, years of operation & counties; combined list of all U.S. Counties; and statehood, territorial & Confederate secession dates. (*NOTE: While Alabama & Georgia had not been fully researched at the time of publication, this CD includes information for thousands of offices from those 2 states.) The most comprehensive collection of U.S. Post Office information ever offered. The ultimate reference for identifying manuscript postmarks, real photo postcards, letters, documents, etc., which refer to specific towns or counties in unnamed states. Available in PC format (#710701) or MAC format (#710702). $99.00 postpaid, worldwide.

United States Post Offices: Volume 1 - The West. (Helbock): Contains a SEARCHABLE & SORTABLE database format, with one complete alphabetical listing of post offices from the following states: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming. In addition to post office names, the list shows location by county and state, dates of operation and a scarcity index number which, when combined with the appropriate demand factor, will yield an approximate market value for the most common postmark from each office. Each disc contains the introductory text from the printed version along with complete post office data bases in both MS EXCEL© and tab delimited text formats. Also includes full size Postal Route Maps of California, Arizona, Idaho, Montana & Wyoming in 1884; Oregon & Washington in 1883; New Mexico in 1907, and Alaska in 1903. Nevada, Utah and Colorado are represented by full color detailed maps of 1903. #730201. $24.95.

United States Post Offices, Volume 2 - The Great Plains. (Helbock): Similar to the above, but containing information for Kansas, Nebraska, North Dakota, Oklahoma, South Dakota and Texas. #730202. $24.95.

United States Post Offices, Volume 3 - The Upper Midwest. (Helbock): Similar to the above, but containing information for Illinois, Iowa, Michigan, Minnesota and Wisconsin. #730206. $24.95.

United States Post Offices, Volume 4 - The Northeast. (Helbock): Similar to the above, but containing information for Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Vermont. #730207. $24.95.

United States Post Offices, Volume 5 - The Ohio Valley. (Helbock): Similar to the above, but containing information for Indiana, Kentucky and Ohio. #730208. $24.95.

United States Post Offices, Volume 6 - The Mid-Atlantic States. (Helbock): Similar to the above, but containing information for Delaware, Maryland, North Carolina, Virginia, West Virginia and the District of Columbia. #740112. $24.95.

United States Post Offices, Volume 7 - The Mississippi Valley. (Helbock): Similar to the above, but containing information for Arkansas, Louisiana, Mississippi, Missouri and Tennessee. #750409. $24.95.

United States Post Offices, Volume 8 - The Southeast. (Helbock): Similar to the above, but containing information for Alabama, Florida, Georgia and South Carolina. #770802. $24.95.

U.S. Railway Post Office Postmark Catalog. (Charles L. Towle, Fred MacDonald, et al.): This is the completely revised update of the original U.S. Transit Markings Catalog Volumes II & III. All reported RPO markings (more than 13,000) are recorded alphabetically, fully illustrated, with complete data: shape, dimensions, colors, dates of usage recorded, unusual killers, special notes, location of stations/terminals, terminals of routes, mileage of routes, catalog numbers, etc. PLUS a VALUATION SYSTEM. This is THE catalog for U.S. Railway Post Office postmarks. (1,149 pages.) COMBINED WITH: U.S. Transit Markings Catalog / Volume IV. (Charles L. Towle & Fred MacDonald): In the same style and format as the U.S. Railway Post Office Postmark Catalog, this book contains Transfer Clerk, Transfer Office, and Local Mail Agent markings; Terminal Markings (Rail, Truck and Air, Air Mail Field RMS & PTS markings); plus Received and Due markings; Train Late and Auxiliary markings; and Separating Post Office markings. Valuation ratings are included for most of the listings. (236 pages.)

BOTH of the above works, in text-searchable PDF format on CD-ROM: #850801. $39.00.

Directory of Railway Post Offices (1864-1977). (John L. Kay): A listing of the Railway Post Offices, operated by the U.S. Postal Department and the U.S. Postal Service, over railroads and waterways, including the dates of establishment, discontinuance and changes of name and operation. (455 PDF file pages.)
Directory of Route Agents. (John L. Kay): A companion piece to the above, this covers the route agents during the period 1837-1882. (168 PDF file pages.)
BOTH of the above Directories combined on one CD-ROM. (623 PDF file pages.) #970365. $34.00.

Postmarks of U.S. Expositions / 3rd Edition, on CD-ROM. (David Savadge/2007): This edition of William J. Bomar's original work contains many recently discovered postmark types; dozens of earliest and latest usage date extensions; and hundreds of pages of new, updated and corrected information. Built on the groundbreaking first edition (1986) and the much improved second edition (1996), this expansive update was compiled and edited by Dave Savadge.

As with the previous editions, this work includes valuations for each postmark type, many which reflect the prices realized for material from Bill Bomar's own collection. (We had the privilege of offering that material in our own Postal History Mail Bid Sales.) In addition to the major events that were covered in Bomar's works, Dave has included information and illustrated material from a couple of dozen smaller expostions.

The text is also accompanied by hundreds of illustrations, many in full color. Included are more than 50 images of items from the Bomar collection. Used here by permission, they were among the nearly 1,000 images contained in our 1999 publication, "The Bomar Exposition Exhibit on CD-ROM." (802 PDF file pages on CD-ROM.) #770602. $56.00.

The BOMAR EXPOSITION EXHIBIT on CD-ROM: Full-color scans of every item from William J. Bomar's Exposition Exhibit. Nearly 1,000 GIF images of more than 300 covers and cards: full scans, plus enlarged close-ups of the postmarks, illustrated ads, etc. Includes his last purchases, which were never exhibited, but many which were surely destined to be added to the frames. This is your chance to see this important exhibit as it was presented, before it was offered for sale, piece by piece. PC FORMAT: #990301. MAC FORMAT: #990302. $39.95. Outside U.S.: $45.00 postpaid.

Catalog of U.S. Naval Postmarks / Fifth Edition. (David A. Kent, Editor/1997): This important catalog was the first full revision in more than twenty years. Lists ships and cancel types, and includes a scarcity index. This one is a must for all dealers and collectors. (The CD has the same contents as the printed version, which contains500 pages.) #850301. $30.00


United States Doanes / 2nd Edition. (Richard W. Helbock & Gary Anderson/2002): This volume contains listings of all known Doane cancels (more than 23,000 of them!), with dates of use. There is also a SCARCITY index for each listing, ranging from 1 to 5, with "1" being the most common and "5" representing the rarities. Contains literally thousands of new reports since the original edition was published in 1993. The CD-ROM contains full-color illustrations in pdf format and US Doane data bases in both MS EXCEL© and tab delimited text formats. The sortable, searchable data bases will allow collectors the ability to customize their Doane listings in a variety of ways and conduct searches to permit identifying partial or hard-to-read cancels. This is a must for collectors and dealers alike. #730205. $24.95.


Postmarks on Postcards, Revised 2nd Edition. An Illustrated Guide to Early 20th Century US Postmarks. (Richard W. Helbock): This 290-page generously illustrated handbook (many in full color) is designed to provide both an introduction to all US postmarks of the 1900-1920 era and a reference for anyone wishing to learn more about postmarks and postmark collecting. The book has been divided into two sections: the first explores all US postmark types found on cards and covers of the Postcard era; and the second provides details of the ways in which US postmarks are collected.

Part I consists of ten chapters featuring Doane cancels; Manuscript & Straight-line markings; Anachronisms & Mimics; and Machine Cancels just to name a few. Each subject is carefully explained and well illustrated, and the discussion includes comments on the market value for each postmark type. The chapter on Machine Cancels includes a simple technique that enables the reader to make a rapid identification of the manufacturer of nearly all machine cancels of the 1900-1920 period. Each chapter concludes with an up-to-date list of references that can lead the reader to more detailed information.

Part II discusses the major ways in which US postmarks are collected. The six chapters in this section include collecting by Geographic Regions, Rural Free Delivery, Railway Post Offices, Naval & Military Specialties and an entirely new chapter on Collecting Ancillary & Auxiliary Markings. Each chapter contains information on collector organizations and references, as well as lots of illustrations and a basic introduction to the specialty.

The book wraps up with a Glossary of Postal History Terms; four Appendices providing specific data on the subjects of US Doane cancels and Military & Naval postal history; and an Index.

In addition, this CD-ROM version has been enhanced with a gallery of nearly 1,000 full-color illustrations of the various sorts of early 20th century postmarks described in the text. (CD-ROM.) #760302. $24.95.

Chapter Outline:
Chapter 1: Introduction
Chapter 2 Handstamps Versus Machine Postmarks
Chapter 3 Circular Date Stams & Associated Cancels
Chapter 4 Doane Handstamps
Chapter 5 Four-bar Handstamps
Chapter 6 Metal Duplex Handstamps
Chapter 7 Manuscript & Straight-line Postmarks
Chapter 8 Anachronisms & Mimics
Chapter 9 Misuse of Special Purpose Handstamps
Chapter 10 Machine Cancellations
Chapter 11 Collecting by Geographic Regions
Chapter 12 Collecting Rural Free Delivery Markings
Chapter 13 Collecting Railway Post Office Markings
Chapter 14 Collecting Naval & Military Postmarks
Chapter 15 Collecting Ancillary & Auxiliary Markings
Chapter 16 Collecting Other US Postmark Specialties
A. Air Mail
B. Fair & Exposition
C. US Possessions
D. Other Possibilities

Washington Territorial Postmarks. (Richard A. Long): A reprint of his 1990-1995 articles in the magazine LaPosta, produced with the kind permission of author Richard A. Long. This CD-ROM contains his ground-breaking catalogue and inventory of Washington Territorial Postmarks. Although not all of the counties of the Territory were included in the series, it remains the seminal work on the subject of Washington Territorial Postmarks to date. The catalogue has been augmented with full-color illustrations of territorial covers from the Lane Woodard Collection. #760301. $24.95.

Western Express on CD-ROM. (Western Cover Society/20056): All 55 Years of the Western Cover Society's journal, "Western Express," on a CD-ROM! Every issue of "Western Express" from 1950 through 2005 has been scanned and stored
on a CD-ROM as fully searchable PDF files. No need to fumble through those old-fashioned paper copies of "Western Express" to find the subjects you are looking for. No more digging through old manual paper indexes. Also, if you are not already a member of the Western Cover Society, you will receive a complimentary one-year membership to the Society, which includes a one-year subscription to "Western Express." #760401. $60.00 postpaid, worldwide.

Early Air Mail & Aviation in Southern California. (Don Evans): This groundbreaking survey of the history of early air mail in Southern California from 1910 to the onset of World War II was originally published in La Posta: A Journal of American Postal History in serial format. The copiously illustrated work has been updated and reorganized, and the images for which color was unavailable are reproduced here in beautiful full-color figures. This will make a very worthwhile addition to the library of any collector interested in the history of early air mail or the broader postal history of Southern California. The text is reproduced in pdf format and the disc includes a copy of Adobe Acrobat Reader©. #730204. $24.95.


Oregon Historic Images. (Helbock): Contains 111 high resolution (400 dpi) tiff images of real photo postcards dating from 1910 through the 1940s from the State of Oregon. These represent the cream of a collection assembled over a period of two decades by Richard Helbock and feature numerous classic small town street scenes; early 20th century transportation (including river steamers, stage coaches, and horse drawn wagons); and classic post offices. The collection is heavily weighted toward views from the Oregon coast from Astoria to Brookings. All images are available at 400 dpi and should be suitable for making 8x10-inch prints. #730203. $24.95.


Oregon Frontier Cavalryman. The Lt. William Carey Brown Correspondence from Fort Klamath, Oregon, 1878-1880. This remarkable series of letters from a young West Point graduate to his family in Denver describes in great detail his observations while engaged in pursuit of Indians in eastern Oregon, the tedius barracks life in Fort Klamath, and journeys north to Fort Vancouver and the Umatilla Indian Reservation and south to Captain Jacks Lava Bed stronghold in northern California. #751201. $24.95.



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INTERNATIONAL ORDERS: Before ordering, please email us for the shipping charge.

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