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Troughton & Simms: [Theodolite]

Map: GLOBE414
 
Cartographer: Troughton & Simms
Title: [Theodolite]
Date: c. 1900
Published: London
Width: 9 inches / 23 cm
Height: 15 inches / 39 cm
Map ref: GLOBE414
Description:
Fine early-20th Century universal theodolite by British scientific instrument manufacturers, Troughton & Simms, established in 1826 by Edward Troughton and William Simms.

This theodolite has been constructed in lacquered and oxidised brass the main tube with rack-and pinion focussing to objective, mounted to a circular protractor with double bubble level twin verniers and oil lamp transit illumination, secured to A-frame over swivelling platform signed as per title with further vernier scale and bubble levels to tri-form base with adjustable feet -- 15in. (38cm.) high overall; together with a modern period-style electric transit lamp secured to Perspex display base.

[GLOBE414]