The Uncataloged And Previously Unknown R14c On Green Paper

Ok, not really, but made you look.

Actually this is an interesting oddity. I'm not sure what caused the paper to turn green. I can't find any evidence of staining. It truly looks like it was printed on this greenish paper. So anyone have idea on what could have caused this change? Food color? Sunlight?

Not sunlight. Some kind of chemical additive or dye.

Seems to me the year is wrong for the green papers, and the paper is not as translucent of the genuine green papers. So how it turned green is beyond me. Thought some have tried to make private die proprietary pink paper stamps using beet juice.

I would throw it into a bath and see if the water tints.
Don

Used to see a lot of those "pink papers" back in the 70's and 80's, not so much since then.

It's also too vibrant/fluorescent a green, unless the overall scan is oversaturated. As therevenueman mentions, the real green papers are almost exclusively 1866 cancels and the paper shown here is too thick.

Someone made a nice try though.

Somewhere around here I've got 1 or 2 examples of R15 that are on "sort of green paper" in that the paper is green across 90% of the stamp, but there are some unpigmented areas that just appear as normal paper. My assumption is that someone was just playing around.

There's a block of R15e that originally got a good PF cert but then was subsequently overturned as "artificially tinted".

That's a good idea, Don. I'll try that.