know the answer, but I do have an interesting new tidbit. I just bought a few rolls of 90% quarters on eBay to take advantage of a 20% off coupon (they happened to be listed in a non-coin category, a requirement for the coupon). I noticed that the seller also had rolls of silver dimes, various silver halves (individual and groups), and a bunch of tokens (Chuck E. Cheese, etc). I didn't think much of it; different people accumulate different stuff. I just got the PayPal receipt for my payment. The recipient was: SO. I don't know that N.F. String & Son is routinely extracting silver (and exonumia) from the coins they receive -- but now I do know that someone dealing under their name is selling such items in bulk on eBay. This strongly suggests that, yes, they're searching what they get. My apologies if this is already common knowledge, but if it's been discussed here, I haven't seen it...?