Duguids Ltd Hay's type portable gas analyzer
circa 1960
Mines Safety Appliances Co. Ltd MSAS3 methane tester with cap lamp
Mine Safety Appliances Co. carbon monoxide indicating tubes
1953
Ringrose type 1 1/4 - 3% gas sentinel alarm
Mine Safety Appliances Co. Ltd bench type W-8 methane detector
circa 1955
CEAG methanometer
Carbon monoxide detector
Methanometer made by M. S. A.
Methane recorder, coal mining.
Methane meter from Old Meadows
Gas detection equipment
Mine Safety Appliances Co. Ltd carbon monoxide indicating tubes
1959
Mine Safety Appliances Co. Ltd Type W8 methanometer
circa 1960
J H Naylor Ltd. McLuckie Methanometer
circa 1950
English Electric automatic firedamp detector
Gas chromatograph
Carbon monoxide indicator tubes
'Ringrose' methanometer
'MSA' methane detector from Oldham Meadows Colliery
Methanometer made by Becorit
Methanometer type G70 MK1
Carbon monoxide detector
Orsat gas analysis aparatus
Atmosphere sampling bulb
Mine Safety Appliances Co. Ltd type MSAS1 methane tester prototype
1956