According to Discogs, mine is actually a 45. A punk record, The Stimulators, Loud Fast Rules. I purchased it new in a NYC record store in the St Marks Square area, close to CBGB’s; I believe Subway Records. That was in 1980 during my punk/new wave period.
Discogs states in the condition it is in, barely played with the original insert, has sold for $250 to $700+. I would say if I was patient, I could easily get $500 for it.
I was kinda shocked, and immediately put in in a plastic outer sleeve.