Is this a proof 1910 Lincoln Cent?  

 

I had this coin in the grading forum, but I wanted everyone’s opinion on whether or not this coin is proof. All the reverse diagnostics are there but I can’t seem to pinpoint one on the obverse. Is I think I see die scratches by “WE” but they are so faint it’s hard to tell. Is it possible that a reverse die meant for proofs was also used on business strikes? Just throwing some ideas out there.

I think it’s been cleaned because the side is the same color as the rest of the coin. The rims look square but that can happen on business strikes too right? I’m having trouble determining if the surfaces look like a matte proof. What do you guys think?
http://www.lincolncentcollection.co...ristics.html




Here are some more photos (they were from the auction)