Zooming in on the 1st photo, the date looks like 1876. Comparing the first "8" with the last digit, there are 2 differences. 1. The first "8" looks rounded as expected while the last digit is more boxy. 2. There appears to be an opening on the right side of the last digit, like a "6". Thing is, the last digit appears to be about 2/3rds the size, so I'm not sure if it has worn off, the photo, or my eyesight. Hopefully a coin person will jump on here and ID.