Wow what happened to that? Register over here and post it in their Mint Error Forum, they'll nail it for you: http://board.conecaonline.org/index.php.
My father found it in circulation in 1972. He gave it to me 20 years ago and I've had it in the attic ever since.
Double Struck Penny? Any advice would be helpful. This penny has been in my family for 40 years now. It's been in an attic this entire time and I don't have any real coin knowledge. Thanks.
You may want to read the forum rules. The moderators frown on starting two threads for the same coin/question.