Inside Linn's: Colorful dollar-sign stamps on certified mail covers

Also this week, an overview of Stampboards.com, the chat board and forum run primarily by Australian collectors, and a word search featuring U.S. stamp subjects that begin with the letter N.

Dollar Signs - USA high face value denominated stamps on cover

FA1 - 1955 15c Certified Mail - Mystic Stamp Company

Inside Linn's: Neighbor's trash serves up a dollar-sign treasure

Daniel F. Kelleher Auctions, LLC Sale - 780 Page 35

SESCAL Stamp Catalog by Nina Petteys - Issuu

Daniel F. Kelleher Auctions, LLC Sale - 787 Page 145

Download - Stamp Insider

Color variety of U.S. $1 O'Neill stamp is in demand

Inside Linn's: Mickey Mouse mystery

Inside Linn's: A tribute to France's Liberty and Peace series

2023-federal-duck-stamp-tundra-swans.jpg?sfvrsn=aa5c0bd1_4

FA1 - 1955 15c Certified Mail - Mystic Stamp Company

The American Philatelist May 2018

Factors influencing a dollar-sign cover's desirability