1999- D Georgia state quarter 1959- D silver quarter(start to a ring?) 1935-D silver quarter 1879-O Morgan dollar 1886-no mint Morgan dollar
No they are not. Just damage. The 1959 is worth silver melt. You also didn't post the other coins you had in your poll so I didn't comment on them.
Looks like environmental damage to the state quarter. And possibly the start of a ring on the second and looks like they might have used pliers to hold it.