Hi I’ve come across this coin I’m not certain if the thing on his chin is an error I’ve not found anything like it so far. And is this a floating roof? Any help would be appreciated.
Basically, As it turns out, the illusion of the floating roof on the Lincoln Memorial was caused by die polishing. Die polishing is a fairly routine process by which a mint employee removes damage on a die by buffing out imperfections caused by wear. However, sometimes certain important details on the coin die will be inadvertently obliterated through aggressive die polishing. Welcome to the forum!
Alexis See this recent thread - https://www.cointalk.com/threads/19...-what-are-your-thoughts.416691/#post-26104077
