Someone was trying to buy this stamp from me but the energy and facial expressions were telling me they wanted it way more than they were offering. Thoughts and opinions on this one, please, my friends?
This stamp was a workhorse value/design from 1923 to 1938, literally printing in the billions. There are quite a few varieties which look identical to this stamp differing by printing method (flat vs rotary), perforation rate (several types), and format (sheet, booklet, and coil, although your stamp is a sheet version which rules out booklets and coils).
Building on your recent post about a 5 cent stamp, you appear to be going down the rabbit hole that your stamps must be the extremely rare variety rather than first assuming you have the most common variety and then working to eliminate types until a final ID is reached. The odds are extremely, extremely long that a random single stamp would be a rare or valuable variety. Better odds to buy lottery ticket.
Quite the contrary, I don't think I have anything extremely valuable. However, I don't want to sell something that may be worth a lot more than offered. At least something fair is all I seek. Since I posted this I watched a few videos on perf. counts and printing types. Is it your experience that tells you it is sheet press? It has no offset and measures frame to frame at 19. I don't have a perf gauge though.