PH meter by Doran Instrument Co. Ltd.

Made:
1940-1960 in Stroud
maker:
Doran Instrument Company Limited

PH meter by Doran Instrument Co. Ltd., Stroud, Gloucester [Patent No. 593920, Serial No 3533], with notes and manual

Details

Category:
Science Teaching
Object Number:
1995-107
Materials:
wood and metal
Measurements:
overall: 300 x 280 x 460 mm
type:
ph meters
credit:
University College School