E. R. Watts & Son

Nationality:
British

Thought to have been established in 1857, see web link, incorporated around 1922

Related Objects

Combined optical square & hand level, British, 1920-1926 (optical square; plummet level)

Road tracer type level with target, British, 1923-1927 (surveying level; levelling staff)

Balloon theodolite MkII by E.R. Watts and Son

Mark II Cotton-Type Range Finder (Naval Instrument)

Balloon theodolite by E.R. Watts & Son, pat.no.114 (balloon theodolite)

Plotting rule by E.R. Watts & Son London, marked H (plotting rule)

Met Office Mk B type balloon theodolite, 1919 (theodolite)

Part of levelling staff, British, 1915-1922 (instrument component; levelling staff)

Rangefinder, Cotton type Mk.11, No.6584, Made E.R.

Acetylene signal lamp with heliograph

Case for vertical force magnetometer and recording apparatus (case - container)

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