EDISON ELECTRIC SAFETY CAP LAMP HANDBOOK - K1-PMX
Issued by the Mine Safety Appiances 1956 18 pp, illus. SB
Everything you need to know about the nickel alkaline cell. Background of the Edison Lamp. Theory of the Edison Cell. Even a test. If you get less than 80%, then read the handbook again!
£5.00 post free in the UK.
Cutting coal in my spare time.