Received this in my change from my pharmacist today. 1973 proof cent, unfortunately it's thrashed. First proof I've found in circulation. Any thoughts on the doubling?
Per the US Mint: "The “S” Mint mark was used on San Francisco coins until 1975, although production in San Francisco was suspended between 1955 and 1965. San Francisco made cents for circulation from 1968 through 1974...." https://www.usmint.gov/learn/collecting-basics/mint-marks
The edge is mostly what raised my concern, it's not beveled like the regular business strike coins. Thanks though