Electric lamp
circa 1980
Oldham & Son type LE electric hand lamp
Miner's electric cap lamp and battery
Oldham & Son miner's electric
circa 1910
Electric lamp, coal mining use
Miner's experimental electric
coal mining electric lamp
Electric lamp, coal mining
Oldham Type S Battery Lantern
circa 1930
Concordia battery lamp
circa 1930
Type P5 battery lamp by Wolf Sheffield
circa 1930
Concordia battery lantern type
circa 1930
Electric lamp, coal mining.
Electric hand lamp
Federation battery lamp
Type B.E.3 miner's electric safety lamp made by the CEAG Miner's Supply Co. Ltd
circa 1930
Oldham & Son Ltd type TD2A safety torch
circa 1960
Oldham Type C electric hand la
circa 1950
Electric lamp, coal mining.
Wolf electric safety lamp
Electric lamp, coal mining
circa 1950
Battery lamp NH10A c.1950s. Miner's electric lamp
Electric safety lamp
Battery safety lamp. Locomotive lamp
circa 1930
Electric lamp, coal mining.
Electric lamp for use in mining
Electric main roadway lamp for use in mining
circa 1955