The notes on Scott #423B (2c rose red, perf 12x10) say this (my comments are italicized):
Quote:
"All examples of Scott #s 423A-423E must be accompanied by certificates of authenticity issued by a recognized expertizing committee. Fakes made from perf 12 (Scott 406), perf 10 (Scott 463), and imperf (scott 409) exist.
and ...
Quote:
" ... One unused and 30 used examples are recorded"
There were literally billions upon billions of the 2c Washington (design A140) issued, but only 31 known copies of perf 12x10 have been recorded. As much as I'd like for you to have found a great philtelic rarity, the chances are very high that you have a forgery.
That said, I would love to see your stamp. There are several experts and a great many exeperienced collectors on this forum who can offer you an opinion on your stamp. The most ideal photo would be one scanned at 600 dpi or higher.
Cheers!
Brian