Mark II Fairweather Gas Recording Calorimeter No. 88, made by Scientific & Projections Limited, Footscray, Kent. Contains Calorimeter No. 4258 made by Scientific & Projections Ltd, Kidbrook Park Road, London, SE3. Mark II Fairweather Gas Recording Calorimeter No. 88
Mark IV Fairweather Recording Calorimeter, made by Scientific & Projections Ltd, Sidcup, Kent. Contains a Hyde-Saville Calorimeter designed by the Ministry of Power, patent No. 837691 Mark IV Fairweather Recording Calorimeter
Wet, laboratory test gas meter made by Scientific & Projections Ltd from a non-magnetic metal/alloy (brass?) painted green, date 1930-1950, with MofP33 lead seal tag. Large sweep hand to circular clock-face dial measuring 1/2 cu ft/rev. (Tingley catalogue No. 239). Wet, laboratory test gas meter made by Scientific
