Thanks for looking, SILVER SAVER - @silversaver888. Yes, some are very rare and the Dealer, at the Local Coin Shop, knows it. Actually, there is a growing interest in Silver Bars. Many old, Defunct, Out-of-Business, Silver Companies kept good records, on totals and mintage number. Those Silver pours you are showing have great future potential. Especially, the documented, certified, unique (one-of-a-kind) hand-made examples.