Hygrometer

Wet and dry bulb hygrometer (or whirling hygrometer), with slots for two thermometers, although only one is present.
The thermometer is graduated to 120 F.

Length of holder 8.25" (21 cm)
Length of handle 7.25" (18.3 cm)

In leather case with straps.

Object Details

ID: NAV0840
Type: Hygrometer
Display location: Not on display
Creator: Unknown
Date made: circa 1950
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 25 mm x 230 mm x 190 mm