What's My Postmark Worth? [.pdf]
A response to a frequently asked question.
New: PMCC Auctions
A great answer to "How do I get more postmarks!?"
New: To Cut or Not to Cut? (To 2x4.)
A discussion of postmark trimming.
Postal Unit Glossary
Learn the difference between a station and branch, CPO and CPU!
A U.S. Four-Bar Postmark Reference
What's a Highway Post Office?
An Introduction to Postmark Collecting
There's no wrong way to get involved.
Find out more! PMCC Museum. The PMCC has mounted this collection on acid-free paper and preserved it in mylar page protectors. The Collection occupies more than 300 binders.
Thanks to the PMCC's efforts you can view the collection for yourself, digitally! The entire catalogue has been scanned, and the full set of graphic files is available for puchase on CD. More information, and an order form, are available here.