The listing, US PERFIN on 12¢ Franklin "F R B" has ended.
PERFIN : "F R B" = Federal Reserve Bank
(ink cancel is not readable - but it was Boston, Mass.)
The stamp is Scott #512 (extending the Series Type of the Flat Plate Printing Issue of 1913-15, Unwatermarked, Perf. 11) released in May of 1917.
There are two specified color variations: Claret Brown and Brown Carmine.
[ I vote the claret on this one, but I could be wrong and you can't judge from a computer monitor image, so I'll leave it up to you. They are valued in the same price range.]
Condition: Cancelled | Perfined | with an un-separated tear at lower left corner
International Shipping is "Exact Cost" for any ONE auction (unless the bid reaches 1200 credits) ---- HOWEVER:
As a SPECIAL OFFER to International bidders:
If you are bidding on my stamp auctions and win more than one auction, you may REQUEST THAT I HOLD YOUR WINNINGS until their total exceeds 1000 credits.
Then, I WILL COMBINE them into one package
and SHIP FOR FREE!
*********That way we both save on shipping!********