I have four coins, all of which are United States currency, on my desk. Some of these coins are face up, and the rest are face down. I know the following facts about the four coins:
1) Each of the four coins is just less than 2 centimeters in diameter.
2) The oldest coin of the four is from 1983.
3) From my perspective (i.e. yours as well), I can see four different drawings on each of the four coins.
4) From my perspective (i.e. yours as well), I can see 7 letter M's.
Your task is to identify each of the four coins and specify whether they are face-up or face-down.