Often the lower right lug, and upper left lug are thinner. Due to the machining process, or machining tools used. As a result, the left crown guard is also thinner that the right one. Not due to polishing , as I have seen claimed.
So says the non expert collector. LOL..
This message has been edited by munchiew from IP address 22.214.171.124 on Jun 12, 2012 11:26 PM