Brownish Black 3 Cent 1861 Issue

Beautiful stamp, but do you have a question
And by the way, the color is not even close to brownish-black !


Peter

thank you but I did not find similar colour in catalogue I think I saw one like that in siegal auction before so uploaded here to get more knowledge

I have several like this, and they are oxidized/sulfuretted. That may or may not be what is happening with this one.
Ray

kindly can see what you have of 1861 issue

No need to see what you have of the 1851 issue. The stamp is heavily oxidized or sulferreted. ray.mac is correct.

Personally I would love to see examples shown as I would like to learn as well.

this is example of different colour for 1861 in trusted website
it is in lovely siegal auction see the link
https://resources.siegelauctions.co....php?id=1045

again another link
https://resources.siegelauctions.co....php?id=1051

Both of those links are returning black and white scans, mostly to show the reverse of the stamp. Are you implying that you have offset or an image on the back of your stamp? I think not. Do you have a color version for comparison?

sure I well never remove my stamp from cover and I am not comparing I just showing different colour kindly see my post

and I am waiting to see similar colour for that oxidization in 1861
oxidization known in 1851 issue

The Siegel auction pictures you linked to are black and white enhancements of the pink version, so can't be applied to your stamp. As has been implied, your stamps are oxidized, whether from 1847 or anywhere up to 2024, you would see a similar effect. I hope this helps you realize that your stamp is considered damaged by many collectors.

But if you continue to wonder, please send it in to an expertizing firm for their costly opinion.

why oxidization process not appear on head or over peropheral of stamp
and waiting to see similar

Why not send it in for experts answer? It won't cost you much. We'll wait for you to post their opinion.

this is very good idea certificate