Massey Sounding machine

Sounding Machine with Lead – originally from Edw. Massey, London, ca. 1810. this is a later edition by Thomas walker +/- 1850

Type of object:

Other instruments

Time period:

Britain rules the waves + France

Place:

London

Date:

1850

Maker / Author:

Massey, later copy by Thomas Walker

Publisher / Printer:

Thomas Walker

Dimensions:

HWL mechanical device: 20x27x8 cm (8×10.5×3.1 in)
L lead with handle: 72 cm (28 in)

Material:

Brass and newer lead

Graduation:

10 to 150 fatoms

Inscription:

EPM Massey's sounding machine

Provenance:

References:

Royal Greenwich Observatory Archives > Longitude Essays

See full item list

Description

This model 5, made by Thomas Walker & Co., has been modified at a later time. For the lead, a Bofor anti-aircraft 2 the WW shell was used, filled with lead on the original steel handle.