Nice finds, looks like Sunday was a good day to go detecting. I found a bunch of old spoons also and 12 buttons. Of course I pulled out of the ground a 1934 Mercury dime and a wheatie aslo and a butt plate and a couple of clay marbles, that were laying on top of the ground.
we could try to find out when they switched from Penn. to PA. I think it was a pretty long time ago. I seem to remember seeing some very old letters using the two letter abbreviations.