Title
thermoelectric free potentiometer
Identifier
ABDNP:200274a
Description
Near bottom right ' SWITCH PAT. No. 616684 ' Grey metal top with ebonite (?) knobs. Wooden sides. Patent dated 24/02/1949 "Improvements in electrical fuses for use with switches" by Long & Crawford Ltd.
Date
1949-1970
Format
wood, chrome (?), ebony, resistance wire
Coverage
London
Creator
H. Tinsley & Co. London S.E. 25 The company logo is a superimposed symbol of 'T' and 'H'
UUID
4dca7fd0-138e-4702-9af3-a2a6a05f62e0