1974 10c Mineral Heritage, 48 Stamp Sheet, #1538-1541, MNH

In 1974 the US issued its first stamps in a diamond shape, honoring our Mineral Heritage.

It's hard to be in the business of buying and selling things and think.. this would look better framed and displayed in my office. 

But I'm doing this for a living. If you know someone into Gem Stones this would make a great gift!