Dunhill Black Spot

[waznyf]

Hey Everyone,
I just purchased a Dunhill with a black spot. Does anyone know much about the history of a black spot or why they are there?

Just curious. The seller told me that he believes that chemical changes caused the once ivory White Spot insert to change color. Any and all help would be much appreciated! Thanks!
-Frank

 

[waznyf]

It appears as if I've posted this thread twice. Could a mod please delete one of the two? My apologies, I pressed send twice on my phone and it posted twice LOL
-Frank