1939 film by James P. Hogan

1920 novel by H. C. McNeile

1922 film by Oscar Apfel

1947 film by Sidney Salkow

1935 novel by H. C. McNeile

1939 film by James P. Hogan

1938 film by James P. Hogan

1939 film by James P. Hogan

1925 film by Sidney Morgan

1937 novel by H. C. McNeile

1933 novel by H. C. McNeile

1932 film by Graham Cutts

Pseudo-novel (short stories) of world War I by Sapper

1927 film by Arthur Maude

1929 novel by H. C. McNeile

1922 edition of novel by H C McNeile (Sapper)

1922 novel by H. C. McNeile

1928 novel by H. C. McNeile

1926 novel by H. C. McNeile

1932 film by Basil Dean

1931 novel by Sapper

1934 film by Walter Summers

1932 novel by H. C. McNeile

serial thriller by H. C. McNeile (McClure's Magazine 1923-24)

1924 novel by H. C. McNeile

book edition published in 1936

book edition published in 1934

book edition published in 1928