I just found this in a cup of change on my desk at home. The 3 is severely doubled on the right. Couldn't find it listed in my book, but a search on eBay shows a similar coin. Their starting bid is 99 cents. Is that what it's worth? Are they pretty common?
Reminds me of a 1955 "Poor Man's" DD. I always understood those ot be die wear of some kind, but not sure.
It looks to me like it is mechanical doubling on the first 3 digits of the date - all to the left. But with the 3 - it is to the right. I believe that to be damage.
My poor scan might be showing a shadow on the left. Item 394415306 on eBay (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=524&item=3944415306&rd=1&ssPageName=WDVW ) has the same picture but adds a chip in the 5. I just found another site (http://www.thecollectorsfriend.com/Lincoln .html ) with no picture, but the exact description.
But the coin you picture is not the same as in either of those links. The coin you pictured has doubling in every digit. The 1 - the 9 - the 5 and the 3. While the coin in the links only has doubling on the 3. Afraid I have to stick with my original opinion. But that's all it is - an opinion.
I don't want to put myself down (my wife does that for me), but I'll take your opinion over my 90 days of collecting experience. Here's another scan at a different angle.
Your first pic was really the best. Please understand - I am not an error or variety collector. But I do know a bit about the basics. And a coin that is the result of a true doubled die has certain characteristics - your coin does not have them. Which is why I think it likely that it is the result of mechanical doubling. Lord knows I could be wrong - certainly have been before.