Are the coins in uncirculated sets really different from circulating coins? According to the US Mint's website, the answer to this question is yes. The page for the 2019 uncirculated set claims "United States Mint uncirculated coins are struck on special presses using greater force than circulating coins, producing a sharp, intricately detailed image." But if this is the case, why can't I find any graded examples of both types of uncirculated quarters, i.e. the "special" uncirculated quarters from the mint sets as well as the "regular" uncirculated quarters struck for circulation? This could just be a dumb question, but I'd really like to get to the bottom of it so I can complete my set. So far, I've got the following quarters, all graded by PCGS: 2019-P San Antonio 5 oz silver, SP 70 2019 (P) San Antonio 5 oz (bullion), MS 69 DMPL 2019-S San Antonio silver proof, PR 69 2019-S San Antonio clad proof, PR 70 2019-S San Antonio clad, MS 66 2019-W San Antonio clad, MS 66 2019-D San Antonio clad, MS 66 (presumably circulation strike) 2019-P San Antonio clad, MS 66 (presumably circulation strike) And then, ungraded: 2019-P San Antonio clad, taken from 2019 uncirculated set 2019-D San Antonio clad, taken from 2019 uncirculated set If the uncirculated set coins really are different from the business strikes, I'd love your advice on how to tell them apart when it comes to graded, slabbed coins since I haven't been able to figure it out myself. Thanks!