ROTOTHERM bakelite cased desk top thermometer with 2.5 inch
dial, 1950s
This desk top thermometer by British manufacturer Rototherm is probably the best known and remains a perennial favourite. Aimed at the domestic consumer, it was available in a range of colours and was also favoured by manufacturers as an advertising or promotional gift.
This example is in dark brown with an off-white dial. The louvered back plate is aluminium, painted black. It has been fully disassembled, cleaned and polished and is supplied in excellent condition and full working order (the simple bimetallic movement has been adjusted using 20 degrees C as a datum and is sufficiently accurate to give a good indication of temperature (+/- 1 degree) from 10 to 30 degrees C.