Instructions, for Aitken's portable dust counter

maker:
Kelvin, Bottomley & Baird Limited

Instructions, for Aitken's portable dust counter, no.116, M O 1A, by Kelvin, Bottomley & Baird Limited, Glasgow, Scotland

Details

Category:
Meteorology
Object Number:
1995-1841/3
Materials:
paper (fibre product) and cellophane
type:
instructions
credit:
Meteorological Office