Journey into Silver's Past: A Resource for Collectors of Old Silver Bars
MMM
MMM Colorado are sought after pieces, however, very little information about this old refiner has been uncovered. The first gens only come with an MMM Stamp and typically are sub 5 oz. Later varieties, assuming they are related and the same refiner, have the MMM with the Colorado stamp. These range from sub 3 oz up to 10 oz from what I’ve seen. Looking for more information on these.
Top example a chunkier pour and bottom a flat pour, visibly larger. Same layout and stamp placements, however.Incredible patina forming on bottom flat variety. Love this piece.
Pictured here is the MMM with Colorado stamp.
Really cool hallmark.Just a bit over 2 troy oz. Interesting to see stamp in grams.
I received a new MMM first gen image today from Jon M. Thanks for sharing this sub 2 oz example
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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I have seen the MMM Colorado with gram stamps on reverse, and with Oz Troy on reverse. I have one of the later.
I have seen the MMM Colorado with gram stamps on reverse, and with Oz Troy on reverse. I have one of the later.