1957 D Wheat Penny..RPM?

Clearly a RPM. That said there seems to be so many for the 1950's cents that you could probably find many unlisted ones. I have several - that I can not match to listed varieties. I keep them ina separate container - and hope that they will someday be listed.

You'd is a pretty nice find.

While it looked like 1957-D RPM-012, the size of the mint mark and shape of the serifs are not a match. But your coin is a RPM. This is the first one I worked up:

Someday you might find an attribution number. I stopped looking at the first close call. But there are several sites that list these. If the coin was BU then it might be worth submitting. But in circulated condition, the problem is for the attributors; how much is damage or was on the coin to start with? So they may pass on a circulated coin. Pre 1930 coins they do look at, but best to find a match from the different sites first. Look for location first. Then look at serif directions. Sometimes I end up with a lot of these in tubes for a look another day.