F IS FOR FIRST
Stamp collectors love firsts! The world's first stamp was the Penny Black issued by Great Britain in 1840.
The first two U.S. stamps were the five-cent Franklin and ten cent Washington of 1847.There will always be new firsts.
The Breast Cancer Research issue of 1999 was the first U.S. semi postal.
Popular collecting firsts also include First Day Covers and First Flight Covers.