Bones Wanted  (c. 1940) 
Her Majesty's Stationery Office

BONES
WANTED

Bones make glue for aeroplanes and other essential war equipment

Don't throw bones away. Use them for stock and then
PUT THEM OUT FOR COLLECTION

This work is in the public domain worldwide because the work was created by a public body of the United Kingdom with Crown Status and commercially published before 1972.

See Crown copyright artistic works, Crown copyright non-artistic works and List of Public Bodies with Crown Status.