Woolwich_rifling_diagram.jpg

Description

Diagram depicting "Woolwich" rifling groove for RML guns, as implemented in 1865 for 7-inch gun.

Date

1877

Source

"Treatise on the construction and manufacture of ordnance in the British service", Page 91.

Author

War Office, UK

Permission
( Reusing this file )

This work created by the United Kingdom Government is in the public domain .

This is because it is one of the following :

It is a photograph taken prior to 1 June 1957; or
It was published prior to 1974; or
It is an artistic work other than a photograph or engraving (e.g. a painting) which was created prior to 1974.

HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref: HMSO Email Reply )
More information .

See also Copyright and Crown copyright artistic works .