Update: received the stamp at issue and was very surprised when viewing it in person as it does have a very blackish color that is unlike any sulphurized effect that I am familiar with.
Not to say that sulphurization is out of the question because under 60x magnification I do see the red in certain places.
Has anyone encountered this degree of sulphurization before? It is rather striking, the blackish effect.
Here are two zoomed hi-res pictures taken under bright light.
Posted 05/23/2018 10:21 am
