Accession No

3846

Brief Description

Wagner’s patent pocket levelling instrument, by Patrick Adie and Ludwig Tesdorpf, Engish and German, c. 1900 - 1950

Origin

England; London; Westminster; Broadway Works; and Germany; Stuttgart

Maker

Adie, Patrick Tesdorpf, Ludwig

Class

surveying

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

metal; steel; brass; glass

Dimensions

case length 193mm; breadth 80mm; height 38mm

Special Collection

Provenance

Purchased from The Antiquarian Scientist, Dracut, Mass. 01826, USA.

Inscription

‘PATENT. WAGNER.
NO. 1708’ (On main instrument)
‘LUDW. TESDORPF
STUTTGART’ (On accessory)
‘ADIE
BROADWAY WORKS
WESTMINSTER’ (Inside case lid)

Description Notes

Leather case lined with purple velvet containing optical instrument and two accessories: a metal eyepiece and a long, flat, thin metal piece with a screw hole in the centre and a brass screw at each end. Instrument has rack and pinion adjustment for object glass. Bubble level visible through eyepiece. Level has brass screw and brass surrounding the lens.

Condition good; complete

References

Events