These ingots are a bit of a mystery and no real provenance has been discovered, but these are most commonly referred to as the name above suggests. They came in two styles a chunky pour and a second variety flat longer pour. I suspect these originated on the West Coast, because both of mine came from California sources. If anyone has more definitive information, please leave a note. Thank you.
Vintage Silver Bars 
I would like to purchase the flat-pour 10
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