Before bringing my coins to the bank I always look through them for silver. This 1968 dime caught my attention having mo mint mark and the 8 was misprinted. Curious how to tell if it is a circulated proof or if it is the worthless Philadelphia mint?
Coins are minted not printed and that's just a regular Philly minted 1968 dime that's had a hard life and looks like it might have been struck slightly off center when made.
In 1968 proofs were minted in San Francisco and carry an S mint mark and only sold in sets. There were a very few that did not receive the S mint mark, but they are rare indeed. This is without a doubt a business strike.
I get that their rare and appreciate the responses i assumed i wasnt lucky enough to get one of the rare ones in curculation but how can you tell the difference between the proof and the business strikes? obviously you can all tell very easily.
Proof below, now not all 1968 proof dimes will have such white cameo frost to them but they will all have deep mirrored fields. Even when circulated or impaired it's generally very easy to determine whether a coins a proof. Here's the obverse of one without the frost
They are minted different on the same metal but on polished planchets which are struck from specially prepared dies at slower speeds and higher pressures. This video is from the UK's royal mint but it will give you the gist. Basically what they describe as 'bullion' would be similar to our circulating coinage production.