1932 novel by H. C. McNeile

1922 film by Oscar Apfel

1933 novel by H. C. McNeile

1938 film by James P. Hogan

1934 film by Walter Summers

1925 film by Sidney Morgan

1922 novel by H. C. McNeile

1920 novel by H. C. McNeile

1939 film by James P. Hogan

1929 novel by H. C. McNeile

1922 edition of novel by H C McNeile (Sapper)

1932 film by Graham Cutts

1927 film by Arthur Maude

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

book edition published in 1936

1932 film by Basil Dean

1924 novel by H. C. McNeile

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

1947 film by Sidney Salkow

1928 novel by H. C. McNeile

1935 novel by H. C. McNeile

book edition published in 1934

1937 novel by H. C. McNeile

1939 film by James P. Hogan

1939 film by James P. Hogan

1926 novel by H. C. McNeile

1931 novel by Sapper

book edition published in 1928