I just searched a $25.00 bag of junk silver that I purchased 6 years ago. I paid less than 16x face. Five dollars face was all uncirculated quarters. P and D mint marks on 1964 and 1963 quarters. Also was one 1954-S and two 1958 Quarters. You won’t find junk silver like this nowadays. There was also one 1957 proof Quarter. First is the lot of uncirculated, then the proof followed by the 1954-S and the two 1958 uncirculated Quarters.
Sure I believe it. You should have seen some of the stuff that went INTO the junk silver bags back during the first silver boom in 1979. And I'm sure some of those bags haven't been touched since then.