I might see an S/s on this 1924 Lincoln. It's in rough shape but with microscope camera when zoomed on the s is is a faint s/s possibility. I am not sure. I would like your thoughts
http://varietyvista.com/02a LC RPMs Vol 1/1924SRPM001.htm VV lists only one example,your MM doesn't match the correct position.Im not seeing any die markers as the coin is extremely worn and most likely just normal.
I don't think that variety exists. I might be wrong, but I can't find it on PCGS, not on eBay, not on any variety websites. The most common cause of this "doubling" would probably be some die wear, but I see what you mean with the top serif of the S and the bottom curve.
Yeah I couldn't tell. I thought I seen something but your right the coin is pretty worn even if it was it would be hard to really tell