
I cannot find an 18 cent black on grey corner in my album or catalogs. It looks like it belongs to the 1861 or 1865 series, but the only 18 cent there is U70, red on buff.
There is a scrape on the left side, and white paper shows through, awfully white for 19th cent. paper. And the back of the paper is white, not grey.
Did somebody make a photo of U70? It has been around for a while, and has been hinged at least twice, so if it is a photocopy, it might have been made before color, and certainly before scanners and computers. Seems an awful lot of trouble for a not terribly valuable stamp.

I'd appreciate your opinions.
Don