Stamped paper

#	Item
21	Digital Color Postmark information from the USPS: Here is some basic information for the guidelines on the Digital Color Postmark. • Envelopes must be a #6 or #10 size constructed of paper rated as Laser Add to Reading List Source URL: www.virtualstampclub.com Language: English - Date: 2010-07-11 08:00:00 Postal system Postal markings Stamp collecting Envelopes United States Postal Service Postmark Stamped envelope Cancellation Cover Philately Cultural history Collecting