This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
H Club issue U.S. stamp. Club cent issue stamp To Make The Best Better Postal Service National Postal Museum si edu html Club Issue Bureau of Engraving and Printing Designed by Charles Chickering other versions PDUSGov Stamps of the United States Commemorative stamps of the United States Stamps designed by Charles Chickering