"Sniffer" Combustible Gas Indicator, in carrying box with accessories, from the Occupational Health Department of the London School of Hygiene and Tropical Medicine, by Johnson-Williams products Bacharach Instrument Co, Mountain View, California, USA, 1960-1985 "Sniffer" Combustible Gas Indicator 1960-1985
Portable Toxic Gas Test Kit, type 2, with calibration charts for Phosgene, Hydrogen Sulphide, NO2 Vapour and Chlorine in air, from the Occupational Health Department of the London School of Hygiene and Tropical Medicine, by Mine Safety Appliances Co. Ltd, Glasgow, Scotland, 1960-1980 Portable Toxic Gas Test Kit
Selection of solid sorbent type Dosimeter Badges for vapours, in sealed packages with accessories, from the Occupational Health Department of the London School of Hygiene and Tropical Medicine, by SKC Inc, Eighty Four, Pennsylvania, USA, 1980-1990 Dosimeter badges for vapours
Gas testing apparatus, rubber and metal, with various glass tubes of chemicals, made by Draeger, German, 1980 Gas testing apparatus 1980
MSA portable Toxic Gas Detector Kit, in leather carrying case, from the Occupational Health Department of the London School of Hygiene and Tropical Medicine, by Mine Safety Appliances Co. Ltd, Glasgow, Scotland, 1960-1980 Toxic Gas Detector Kit
