Water-cooled gas sampling system for vehicle emissions testing by G. Cussons Ltd. (to be drained of water before transit). On castors. Very incomplete, 1975 - 1980. Water-cooled gas sampling system for vehicle emissions testing by G. Cussons Ltd 1975-1980
Gas sampler by Charles Austin Pumps Ltd of 100 Royston Road, Byfleet, 1960s. Gas sampler by Charles Austin Pumps Ltd of 100 Royston Road 1960-1969
[Kitigawa] Japanese hand pump for gas sampling, 1960s, still in current use. [Kitigawa] Japanese hand pump for gas sampling 1960-1969