4 1/2-inch ivory sector

One of two 4 1/2-inch ivory sectors by Holtzapffel & Co

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One of two 4 1/2-inch ivory sectors by Holtzapffel & Co
Science Museum Group
© The Board of Trustees of the Science Museum

One of two ivory sectors by Holtzapffel & Co. (B502; A54794)

Details

Category:
Mathematics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
1980-1134/1
type:
proportion drawing instruments and sectors
credit:
Wellcome Trustees