Browse Items (3473 total)

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.

a glass tube containing mercury, weighted at one end. Cardboard tube container in brown marbled effect with label in French. No scale

a glass centigrade thermometer, scale -10 to 100 deg C. Black ink liquid. In cardboard tube

a mercury glass centigrade thermometer, scale -5 to 105 deg C. In cardboard tube

a mercury normal thermometer 6 Deg C max, with upper metal end cap. Housed in cardboard tube

a general purpose mercury glass total immersion thermometer scale 0 to 200deg C. In clear plastic case, cat No.10046

a 76mm immersion mercury glass thermometer scale -10 to 360deg C. N2 filled In clear plastic case, No.THL-210-110E

a general purpose mercury glass total immersion thermometer scale 0 to 360deg C. In clear plastic case, cat No.10003

ser No. 20779. A mercury 60mm immersion thermometer housed in a cardboard tube

min/max thermometer, U shaped glass tube with limit pins set above the mercury. Plastic case. A red plastic magnet holder is hung on the bottom for use in setting the limit pins; possibly modern for maintaining air control