Ossa sepiae
Revision as of 06:11, 24 July 2013 by (username removed)
Description
An abrasive made from charred bones. Ossa sepiae was used to polish gesso to a very smooth surface.
See also bone black, and bone ash.
An abrasive made from charred bones. Ossa sepiae was used to polish gesso to a very smooth surface.
See also bone black, and bone ash.
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