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