Your chances of finding one on the wild is pretty remote. 2.6 BILLION 1964 Philadelphia mint cents were minted compared to 40-50 of the SMS Lincoln's.....maybe fewer.
The YouTube guy never bothered to mention that all the 64 SMS coins were found in the estate of a a former Mint Director in the 80s and all were certified by third party graders. You won't find one in circulation. I'm not being critical of the the new members question. I just want to point out how irresponsible some of these YouTube people can be.