Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Measurement of Humidity (instructions)
Typed in black ink on cream paper. Instructions and notes on how to measure humidity using a hygrometer.
Pwnc
Diwydiant
Rhif yr Eitem
86.129I/501
Derbyniad
Bequest, 8/9/1986
Mesuriadau
Meithder
(mm): 254
Lled
(mm): 200
Deunydd
papur
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.