![](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
1920
1917
1924
1916
1915
1915-1917
1924
1919
1918
1915
1922-1923
1922-1923
1922-1923
1922-1923
circa 1920
1921
1914-1918
1914-1918
2000-100 BCE
1914-1918
1922
1915-1918
1914
1923
1921
1917-1918
1924
1923
1934
1915
1923
1915
1914-1918
circa 1920
1920
1914-1918
1914
1914
1955; 1830
1918-1920
1914-1916
1918
1914
1914-1918
1918