cashiers in general dont care. at a mcdonalds i worked at one cashier took in a fake 100 bill and the next day someone else got a fake 20. the 100 wasnt even the right size. the 20 however even fooled the store manager. i was standing next to him when he was counting the tills in the morning(i always did so i could get silver from them) and i pointed it out to him that the sn was printed instead of being stamped. most of the counterfeit bills out there are made from 1s and 5s they wash the ink off and print the new bill onto it. easiest way to tell is look at the s/n but most cashiers just take their little test pen and swipe it acrossed and with any real bill it will pass. to the op, the coins appear genuine! i would give them about 20percent below redbook value. thats more than a dealer would give but still below what you would have to pay for them at a shop