Image:Trench construction diagram 1914.png

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[edit] Summary

Instruction diagram for constructing a reveted fire-trench with bays and traverses.

From Field Entrenchments: Spadework for Riflemen, E.J. Solano, 1914.

[edit] Licensing

This artistic 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 created by the United Kingdom Government and taken prior to 1 June 1957; or
It is a photograph or an engraving created by the United Kingdom Government and commercially published prior to 1958; or
It is an artistic work other than a photograph or engraving (e.g. a painting) which was created by the United Kingdom Government prior to 1958.

More information. See also Copyright, Crown copyright artistic works and HMSO Email Reply.