If you collect American coins, which of these coins is impossible to obtain?
Correct answer: 1815 one cent piece

Mars V
Remember penny candy or a box of Lemon Heads for a nickel. A lone quarter is useless today except for flipping.

Player #mamajord
The coin is impossible to find even if you do collect US coins.

VariousTranslation54
1943 copper cent extremely coveted.

ChewyGazelle68623
learned something new!! THANX!!