Other Notable “O” Hallmarks

Not a lot of “O” box, but here are some of the more interesting “O” ingots I’ve collected over the years.

OIO is one that has been a mystery. They are beautifully done and I’ve seen them in 1 oz, 10 oz and even a few larger sizes. They are fairly scarce.

1o oz odd weight OIO with Lot #006.
Another shot of the 10 oz.
Awesome toning and character.
Beautiful 8.98 oz Lot #1 from Prashant K’s collection. Awesome piece.
Really nice reverse pic!

Oregon Gold and Silver, OGS, is another really cool old refiner. They use a mold that is nearly identical to the Brown Materials and Golden Analytical pieces. They mainly came in 10 oz, but I’ve seen a 5 oz and I own a 2 oz piece that I’ll post in my “smalls” blog later. These are really cool bars.

Neat hallmark with lot/serial number.
Fantastic lines on the reverse.

Author: Vintage Poured Bars

New blogger with a passion for old poured silver bars. I'm a Bay Area native and self employed. Active buyer of vintage silver poured bars and occasional seller.

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