They look like they spent time in the ground, possibly metal detector finds? The 1912D is the only one worthy of saving really. Of course you can save them all if you like them. But the finger prints on the 1909 pretty much destroys that one's value. The 1912 D might clean up some with a pure acetone bath followed by some rinsing in distilled water. Over all there's not much value here. Agreed with furry's comment.
Nice dates but poor condition and condition is everything. Two dollars for all would be tops. Welcome to CT.
