Road tracer type level with target, British, 1923-1927
1923-1927
1923-1927
1941-1950
1745-1755
1840-1860
1926-1929
1951-1960
circa 1950
1925-1929
1905-1915
1880-1885
1820-1829
1946
1926-1929
1957
1841
1946
1841
1826-1866
1826-1866
1840-1850
1891-1901
1957
1946
1841
1820-1829
1880-1885
1840-1850
1905-1915
1826-1866
1946
1923-1927