Welcome to Coin Talk. Here's a site to check your coin against: http://doubleddie.com/311222.html And another: http://varietyvista.com/02b LC RPMs Vol 2/RPMs 1960D (1-60).htm Your photo is too small for me to check against all the listings as there are too many. A large clear photo of the mint mark would make it easier for me to do so
I don't think it's anything but you can ask the error coin experts: @Fred Weinberg; @paddyman98; @JCro57; @desertgem; et al.