Happy. Independence weekend be safe out there

In September 1859, he proclaimed himself "Emperor of the United States". Norton had no formal political power, but was treated deferentially in San Francisco nevertheless, and currency issued in his name was honored in some of the establishments he frequented. Some considered Norton to be insane or eccentric, but residents of San Francisco and the city's larger Northern California orbit enjoyed his imperial presence and took note of his frequent newspaper proclamations. Though Norton received free ferry and train passage and a variety of favors, such as help with rent and free meals, from well-placed friends and sympathizers, the city's merchants also capitalized on his notoriety by selling souvenirs bearing his image

Hey everyone I’m Roy here is some of my collection I’m proud of

Hello everyone. Newbie here. My name is Dale and was hoping to get some insight on a few coins I found. This is a 1968s Lincoln Cent with what looks to be a possible RPM. "S over D" maybe. Any help would be greatly appreciated.
Thanks.

Hello everyone I’m Nick from ca. and I’m kinda new to collecting coins I mean I always have but I’m just getting t know what to look for and I could use a little help on understanding what these coins are any help would be greatly appreciated thank y’all