![](https://coimages.sciencemuseumgroup.org.uk/2/695/large_thumbnail_a652314.jpg)
Anti-mosquito spray gun
1914-1918
1914-1918
1918-1922
1915
1918
1914-1920
1912
1913-1923
1917
1924
1910
1925
1925
1921-1926
1915
1919
1918
1911
1910
1910
1915
1922-1923
1922-1923
1922-1923
1922-1923
1913
circa 1920
1915-1925
1910
1925
1908
1909
1910
1912
1914
1926
1926
1934
1915
1910-1920
1923
1920
1922
1912-1922
1920-1925
1923
circa 1910
1920-1925
1917
1915
1914-1918