A lot of "washer coins" aren't really washer coins. Some coins just get their rims filed off by someone. Your quarter is interesting. It looks like it's had a long hard life. Specifically it looks like it got a lot of heavy wear and then lost some of its rims to a washer or file. Then it had more wear and was roughed up badly before getting more years of wear. I'd call it a cull due to the roughness.
