This is a Rototherm desk thermometer, it can also be wall hung using the keyhole shaped slot in the back.
These were made in a variety of different colours and this one is in a stylish ivory colour. It is made from a urea formaldehyde resin and probably dates from the 1930's or 40's.
The overall height is 100mm and the depth 40mm.
There is a small mark on the face inside the glass, otherwise it is in very good condition.
Postage is for UK only, please enquire for overseas postage.