H Rate Change Stamps – and a Modern Rarity!
Due to pending postal rate increases in 1998, the U.S. Postal Service issued a set of non-denominational stamps that feature “Uncle Sam’s hat.” The new postal rate was set at…
Rare Stamps
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Graf Zeppelins
Graf Zeppelins are some of the most sought-after U.S. stamps. These airmail stamps are scarce because of their very small issue quantities and the fact they were on sale for five weeks and two days – and that was over 80 years ago!
