Touch needles for the assay of gold

Touch needles used in the assay of gold

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Touch needles used in the assay of gold
Science Museum Group
© The Board of Trustees of the Science Museum

Touch needles used in the assay of gold, eleven needles 12-22 carat inclusive, made by Rivera

Details

Category:
Metallurgy
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
1984-498
type:
needle
credit:
Wellcome Trust