1893 US 2c Columbian Stamp, Possible Error Of Color Or Aged?

Hey forum!

Just going through these 2c Columbian stamps and notice a distinct DARK brown color difference of one, extremely similar to the 5c Columbian color. It was hinged off to the side of a regular color 2c in a White Ace book.

Can't find anything similar to this online does anyone have more info.? Just an aged stamp?

I know the The 4c Columbian has a color error which was caused by the use of a wrong batch of ink, and spectrographic analysis has shown that the blue inks of the 4c error and 1c Columbian have the same components.

Is it possible the wrong batch of ink was also used with the 5c Columbian and 2c Columbian causing this color difference?

I do not believe there is a color difference, but a color change due to the environment. Like maybe too much light or something similar.

Peter

The stamp ink almost certainly is darkened from exposure to environmental elements, as Petert4522 indicated. If you go to the "US Classic Stamps Mint and Used" forum link above, and search on the word sulfuretted, you'll see more on this phenomenon.

Hi Hotartifacts, not an error just discoloration. The nature of the pigments of the two cent Columbian allows a wide range of color shades, and an even greater number of color alterations due to chemical or light exposure. Keep hunting the two cent Columbians are a lot of fun. Over 1.3 billion printed!