Here's another 10c CSA with a different color. Someone marked 12C on the back. Is this one genuine and is the catalog number 12C correct? What would the current value be? Glue remains on back but is cracked Does not appear to have been hinged.
Looks real. But is mislabeled on the back. That is a #11, colour looks to be greenish blue or green, difficult to tell from scans, due to differences in monitors and scanners. Catalogue value $30 (greenish blue) or $75 (green). A fraction of that in real life.
Thanks James, I've been trying to tell the difference between #11 and 12 and understand that 12 has filled corners. I compared both the blue and blue-green stamps I have and noticed they look the same. So guess both my 10c stamps are #11 with only a color difference. The real world price on these is pretty much what a paid for them over 30 years ago. Looks like they have been a poor investment.
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