Four Treasures Reference Database
Record No. 467
[Yogo Gulch sapphires]

[Yogo Gulch sapphires]

Yogo Gulch sapphires
Newspaper Article
Billings Gazette (1957) [Yogo Gulch sapphires]. Billings Gazette, 14-Jul, Billings, MT
not seen
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corundum, Montana.12, USA.12, gems
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