PH meter, type TF511D, made by Marconi Instruments

Made:
1950
maker:
Marconi Instruments Limited

PH meter, type TF511D, made by Marconi Instruments Ltd., (serial no. 723358), battery operated, c. 1950

Details

Category:
Experimental Chemistry
Object Number:
1982-844
type:
ph meter
credit:
MacLachlan, T.