Adapted Hailwood's type 01 miner's safety lamp
circa 1925
circa 1925
1960
1934
circa 1960
1860-1870
circa 1950
circa 1948
1970
1875
circa 1920
1970
1970
circa 1880
circa 1930
circa 1900
1870-1890
1910
1873-1880
circa 1880
1970
circa 1960
26/10/1970
circa 1920
circa 1935
1971
circa 1910
1971
1971
circa 1910
1880-1890
1890
1890-1900
circa 1911
1890-1910
1873
1890
circa 1920