WELCOME to ModCoverGuy.com, your best source for unique and tough to find modern U.S. postal history. I have a vast stock of U.S. covers, stamps and other paper ephemera. New covers and other items will be added periodically. All items will be sold on a first come, first serve basis. If there is anything you are looking for, please contact me.


Robert Thompson found an untagged 20ct Official coil UNTAGGED error on cover.

The cover below featuring a rare 3/21/1966 3rd class usage of US QI1 sold on Ebay on 10/30/2012 for $456!

My latest PNCs on Commercial Cover article (#150) discusses why you should collect pnc commercial covers. It appears in the Plate Number Coils Club monthly newsletter, Coil Line.  

My handbook, PMCs: A Guide to Collecting Purple Machine Cancels, is still available for $12 postpaid. 


THE FIELD GUIDE TO COLLECTING PNCs ON COVER – my latest book on PNC commercial covers. It includes all the earliest usage dates for every plate number coil on commercial cover, plus scarcity ratings, as well as many rare pnc covers shown in color. Spiral-bound. $25.00 postpaid.

WANTED: I’m working on an 2000-2009 U.S. Coils exhibit and need commercial covers with 37¢ and 39¢ Official coils, especially PNCs.  I’m also looking for a cover with the water-activated (10¢) Patriotic Banner (2008) PNC.