Walt; Obviously the seller has no idea of what he's got since he's described his/her strikes as being "sterling silver", not .999 fine silver. Plus, the seller is probably mistakenly figuring that each strike contains one ounce of silver to come up with the $700 figure.

http://www.ebay.com/itm/39-Casino-10-Silver-Strikes-/321175894449?ru=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D321175894449%26_rdc%3D1&nma=true&si=1TcPP%252F2h1izG5PzkGjj0O%252BEbLO8%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557#ht_49wt_1170