Most of these are quite minor, and one really needs to be able to match the die markers. I see some extra thickness but can't confirm whether or not it is a doubled die. http://coppercoins.com/diesearch.php http://doubleddie.com/809586.html http://varietyvista.com/01a LC Doubled Dies Vol 1/1958DDDO001.htm
I do not see any evidence of a DDO. A slight amount of die deterioration doubling, which is not extra value, and also wear contributes to the appearance. Jim
