Set of drawing instruments by Holtzapffel & Co.

Made:
1839-1900 in London
maker:
Holtzapffel and Company

Set of drawing instruments by Holtzapffel & Co., London, including dividers, compasses, prickers, ivory scale, parrallel rule and sector in fitted mahogany case.

Details

Category:
Mathematics
Object Number:
1946-94
Materials:
ivory and mahogany (wood)
type:
drawing instruments sets and prickers (drawing)
credit:
Professor H.E. Rose

Parts

Ivory parallel rule, from set of drawing instruments

Ivory parallel rule, from set of drawing instruments

Ivory parallel rule from set of drawing instruments by Holtzapffel & Co., London.

Measurements:
overall (estimate) : closed: 3 x 150 x 30 mm
Materials:
ivory , brass and complete
Object Number:
1946-94 Pt2
type:
rules (drawing) and parallel rules
Image ©
The Board of Trustees of the Science Museum
Ivory sector, from drawing instrument set

Ivory sector, from drawing instrument set

Ivory sector from set of drawing instruments by Holtzapffel & Co., London.

Measurements:
overall (estimate): 3 x 150 x 30 mm
Materials:
ivory , brass and complete
Object Number:
1946-94 Pt3
type:
proportion drawing instruments and sectors
Image ©
The Board of Trustees of the Science Museum
Ivory diagonal scale with built-in protractor from set of drawing instruments by Holtzapffel & Co

Ivory diagonal scale with built-in protractor from set of drawing instruments by Holtzapffel & Co

Ivory diagonal scale with built-in protractor from set of drawing instruments by Holtzapffel & Co., London.

Measurements:
overall (flat): 3 mm x 150 mm x 42 mm, 0.018 kg
Materials:
ivory
Object Number:
1946-94 Pt4
type:
rules (drawing) and scales

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