Two ivory sectors by Holtzapffel & Co.

Made:: 1839-1865 in Charing Cross

manufacturer:: Holtzapffel and Company

Two ivory sectors by Holtzapffel & Co., 64 Charing Cross (B502; A54794)

4 1/2-inch ivory sector

5 1/2-inch ivory sector

Details

Category:: Mathematics

Collection:: Sir Henry Wellcome's Museum Collection

Object Number:: 1980-1134

Materials:: ivory and metal

Measurements:: overall - closed: 3 x 122 x 36 mm

type:: proportion drawing instruments and sectors

credit:: On loan from the Wellcome Trust

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