https://www.usacoinbook.com/coins/511/small-cents/lincoln-memorial-cent/1968-S/ https://coinauctionshelp.com/lincoln-cent-value-memorial/
This penny was in a coin envelope by itself, I am trying to figure out why this person would save this one penny
I would have saved like that because it is an S mintmark. And in very nice condition. https://www.pcgs.com/Photograde/#/Lincoln/Grades