Arabic glass standard weight for unknown coin (5.79g)

Arabic glass standard weight  for unknown coin (5.79g)

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Science Museum Group Collection
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Circular Arabic glass standard weight, opaque glossy black, for unknown coin (5.79g), Grille design, unsigned, North African, 800-1499CE.

Details

Category:
Weighing & Measuring
Object Number:
1927-1100/13
Materials:
glass and complete
Measurements:
overall: 6 mm x 27 mm x 26 mm, .00579g
type:
coin weight, standard weight and glass weight
credit:
Dr. W.L. Hildburgh.