have you pulled them all from circulation? I have went through 1000's to get where I am. I have all uncirculated from 50-2012 several proofs. Have a whole roll of 94 S proofs. Several before 1950 UNC I only have one semi key date no key dates but the rest I have I have a lot of duplicate stuff. Got a whole bag of S mint wheat and also whole bag of S mint memorial. I have 2 or 3 complete sets from 59-2012 just Yvette business strikes I have pretty much an obsession with pennies. I would be more than glad to look through my stuff and if I have that 1973-S I would be more than happy to mail it to you. Free of charge