Image
Category
Collection
Maker
Object type
Place
Material
Date

Sectioned Revolution Counter MkIV a.(mechanical)

Sectioned Revolution Counter MkV

Revolution Counter MkIV by Smith

Revolution Counter German electric induction type

German clock type revolution counter and indicator

Sectioned Revolution Counter WD

German Revolution Counter by Morell No. 81184

Revolution Counter

Jaeger clock type revolution counter

German Revolution Counter by Dr. TL.Horn Leipzig

A revolution counter, marked Cary/London

Revolution Counter, with five discs

Small Hand revolution Counter

Combined Revolution counter and stop watch in case

Casagrande liquid-limit apparatus

Improved form of mechanical counter, late 19th century.

late 19th century

Mechanical counting device, c 1900.

circa 1900

TEL' German revolution counter

'TEL' German Revolution Counter

German Revolution Counter

Revolution counter, inscribed with numbers

Aircraft engine revolution counter.

Casagrande liquid-limit apparatus, hand-operated with revolution counter to "BS 1377" ( 1967) with stainless-steel grooving tool by Leonard Farnell & Co. Ltd. (ser.no.9568/309) ( missing: height gauge)

Casagrande liquid-limit apparatus

1967

Revolution-counter measuring unit

Revolution-counter measuring unit

Revolution counter made by S. Smith & Son Ltd, London, 1960

revolution counter

1960

wooden wheel, set into iron frame, with 'clock face' counter. Used on a waterwheel powering a papermill. manufacturer unknown.

revolution counter used on a waterwheel

Revolution counter in case.

revolution counter

Revolution Counter by Elliott No. 8454 (glass cracked)

Revolution Counter by Elliott No. 8454