Hello Charcoal --

The US cent is original. Value is very low, about 5 US cents. See:

https://coinquest.com/cgi-bin/cq/coins.pl?coin=715

The Maria Theresa thaler is probably real, but it has been filed away to get its silver. What is left is worth its weight in silver. See:

https://coinquest.com/cgi-bin/cq/coins.pl?coin=1374

The FRANC IOS coin is clearly a fake.