Question In Regards To A 1990 D Penny

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Author	Replies: 3 / Views: 1,590
spring423 Valued Member United States 240 Posts	Posted 03/17/2011 4:04 pm Was going through several coins and came across this penny. On the front and rear of the penny there are numerous raised areas. On the front the d has several raised areas, one on the forehead of Lincoln and to the rear of the top portion of the ear. Also on the top where the word trust is are raised areas. On the rear of the penny around the words and the monument are alot of raised areas. My question is, is this the result of a greased filled die. Sorry about the scans but they do show enough as to what I am inquiring about. Thanks for any info. http://s1214.photobucket.com/albums...3/spring423/ Report this Post to the Staff

amida17 Pillar of the Community United States 4897 Posts	Posted 03/17/2011 4:35 pm IMO looks like zinc zits...zinc corosion under the copper plating. See what others say. Report this Post to the Staff
spring423 Valued Member United States 240 Posts	Posted 03/17/2011 4:38 pm I believe you are correct. Noticed the same thing in another topic. Thanks Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 03/17/2011 9:35 pm That is caused by the copper plating being split during the striking process. At first it is just a gray area until the zinc starts to work after being exposed to air. The can raise, fall and even fall off a portion of an area where the plating split happens. Report this Post to the Staff
	Replies: 3 / Views: 1,590

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