Natural History - Brown Obsidian Natural Glass Specimen Group [100]

3/4 - 1 3/4 in. (878 grams total, 22-46 mm).

Comprising cut dark brown to black samples. [100, No Reserve]

Provenance

Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).

CONDITION

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AUCTIONS:

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LOT 2180