It is the type to save of MAD coins as some of the devices are falling over the edge of the coin:

Not as valuable as an off center though. If the reverse is normal, then it is not an off center. (Mad reverses have the normal reverses on them) So an image of the reverse would be helpful. If you traded with a reprocessed steel cent, you got the better end of the deal. (The other guy got robbed)
There were no Proof Steel cents. People replated them and they are just a face value coin when altered. (but still a
Wheat cent) But worth nothing to a true collector. How can you tell if it was replated?

Note the top image. The surface should not be shiny. The bottom one was re-processed/re-plated.