Moisture tester, 1966, used for measuring the moisture content of sand aggregate, and " dry" mix in concrete batching, the Speedy Moisture Tester, no 34568, by Thomas Ashworth & Co. Ltd., Burnley Moisture tester 1966
Two `Speedy Moisture Testers' made by Thomas Ashworth and Co, Burnley, 1950-1960 Speedy Moisture Testers 1950-1960
Electric moisture tester, in wooden box with a tapered lid. With metallic stand. Manufactured by the Shirley Institute Electric moisture tester by the Shirley Institute
