Russelveldt hair hygrometer, c. 1922.

Made:
1922 in Norway

Russelveldt hair hygrometer, c. 1922.

Details

Category:
Meteorology
Object Number:
1922-9
Materials:
brass and thread
Measurements:
overall: 23.3 x 12.5 cm
type:
hygrometer
credit:
Meteorological Office

Parts

Envelope of hairs, for Russelveldt hair hygrometer, c. 1922.

Envelope of hair for Russelveldt hair hygrometer, c. 1922.

Envelope of hairs, for Russelveldt hair hygrometer, c. 1922.

Object Number:
1922-9/2
type:
hair