U.S. Used #C31 50c Air Mail, Superb. Grand Central Station Cancel. A Gem!

Description

U.S. Used #C31 50c Transport Plane Air Mail. Superb. Grand Central Station Cancel.
Vivid Color. Sharp Impression. A Gem!
I have decided to start selling off my lifetime accumulation of highest quality, used U.S. stamps. I will be offering stamps from the 19
th
Century through hard to find modern used U.S. stamps, multiples, plate blocks, souvenir sheets, booklet panes and even full sheets or panes.
I have always purchased stamps in the best possible condition available.
Premium condition used stamps have become much harder to find than mint.
Please see our eBay store.  We have over 3,000 listings of high quality used U.S. items.  All are priced to sell with the Make an Offer option.
We will combine shipping.
If you purchase more than one item, please wait for a combined invoice that will show reduced shipping costs.
All stamps are sound in all respects (no faults), unless otherwise noted.
I have included photos of the back of each stamp for your convenience.
Your satisfaction is guaranteed.
So please bid with confidence.