Detector (Methane); 1980.420.1


Detector (Methane)

About this object

A methane detector in a black Bakelite case measuring 165mm x 105mm. # knobs one end reading "Fresh, Dead, On, Off, Depress to turn on". The front has a glass circle with a yellow coloured meter and black lettering and numbers. Embossed "MSA" in cross and circle. Metal plaque on the side with " Approval Dept. Interior USA
Model 506 No 8271
Patents 1.579849,1.635,1661,214
Made by Metre Western Electrical Instrument Corp for Mine Safety Appliances Co.
Place of origin Newark NJ USA and Pittsburgh Penna USA

Place Made

Pittsburgh, Penna USA

Medium and Materials


Inscription and Marks

"MSA' embossed in cross and circle
"Fresh" "Dead" "On" "Off" "Depress to turn on"


165mm height x 105mm width

Subject and Association Description

Detector, mining, methane, safety, Mine Safety Appliances Co, USA

Object number



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