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Image: Woolwich rifling diagram

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Woolwich_rifling_diagram.jpg ‎(430 × 197 pixels, file size: 32 KB, MIME type: image/jpeg)

Description: Diagram depicting "Woolwich" rifling groove for RML guns, as implemented in 1865 for 7-inch gun.
Title: Woolwich rifling diagram
Credit: "Treatise on the construction and manufacture of ordnance in the British service", Page 91. Downloaded from https://archive.org/details/treatiseonconst00offigoog
Author: War Office, UK
Permission: 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 1973; or It is an artistic work other than a photograph or engraving (e.g. a painting) which was created prior to 1973.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.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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