The unobstructed skies that gave Big Sky, Montana its name made for an appropriate setting for the release of two postage ...
Ink stamps can be fun to make and use, and 3D printers are uniquely positioned to create quality stamps of all kinds with ...
To allow cancellation ink to seep into a stamp permanently, innovations such as the “grill,” a waffle-pattern embossing, were applied to U.S. postage stamps between 1867 and 1872, with each ...