Polished Fossil Orthoceras Coaster Set

DEVONIAN PERIOD, CIRCA 417-354 MILLION YEARS B.P.

3 5/8 in. (682 grams, 91 mm wide).

Comprising six circular coasters, the Orthoceras have been polished through the shell to reveal the calcite preserved inside and showing the dividing gas chambers known as suture patterns. [No Reserve]

Provenance

From a Cambridgeshire, UK, collection.

CONDITION

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AUCTIONS:

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LOT 2467