Over the years, members of the Society have created a large
number of publications about machine cancels,
their inventors, manufacturers, and the markings
themselves. This is an important goal of
the Society: passing along critical knowledge. The publications
are for sale to both members and the general public. Machine Cancel
Society members receive a discount on the publications they
The following Adobe Acrobat file has
the current pricelist of publications offered
by the Machine Cancel Society. The current
list is dated May 2016.
[For information on downloading and reading PDF files see this webpage on how to download and view PDF files.]
The estate of the late Frederick Langford has sold all remaining copies of Mr. Langford's books to the Society for resale to members. It cannot be emphasized enough that Mr. Langford was the authority on American flag machine cancels.
The Flag Cancel Encyclopedia, along with Langford's book on Doremus machine cancels, are now available from the Machine Cancel Society. Mr. Langford sold the books for $50 for the 2008 edition of the Flag Cancel Encyclopedia, and $20 for the 1988 Doremus. The Society now sells them for 1/2 retail plus postage, or $29 for the Flag delivered in USA and $12 for the Doremus delivered in USA, or $35 for BOTH books delivered in USA (yes, you read that right, a much better deal if you buy both books!) They are a bargain. Both are hardbound, too!
If the books are shipped overseas, they are priced at US$25 and US$10 plus postage (approximately US$20). If both books are ordered for foreign delivery, please add $20.00 for shipping so both books are available for only $55.00.
Please direct your orders to:
1261 Ducrest Dr S
Columbus, OH 43220-3813
Make checks payable to The Machine Cancel Society
Mr. Carlson can be reached at the email address: