What’s so special about a Z-grill To the untrained eye, the blue one-cent Z-grill, which depicts the nation’s first postmaster general Benjamin Franklin, looks like any old stamp. What’s ...

This 1-Cent Z Grill from 1868 is one of the rarest U.S. postage stamps in history Robert A. Siegel Auction Galleries A 1-cent postage stamp from 1868 is up for auction and could fetch up to $5 ...

Grill -- the rarest of all of them is the 1-cent Z-Grill featuring Benjamin Franklin. This stamp was first pressed in 1868, and, in addition to being old, this stamp's grandiose value stems from ...