Originally Posted by
Gannyrosie
Sewbiz, as long as it's not a cancelled stamp and you don't tape it.
If you are using stamps that have been used but not cancelled, it is a federal crime to reuse it. This is from the USPS:
Poster 5 - Warning - Reusing Postage
WARNING!
Once a postage stamp has been used, it is a federal crime to:
1. Remove, attempt to remove, or assist to remove cancellation marks from postage.
2. Reuse a stamp whether cancelled or not.
If you have questions concerning the reuse of postage, please contact your local Postal Inspector.
Title 18, U.S. Code, Sections 471 and 1720
Poster 5 July 2005
PSN 7690-03-000-9182