Delwedd:Hawthorn Ridge Redoubt mine (1 July 1916) 1.jpg

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Español: Voladura de la primera galería subterránea bajo el campo de batalla del Somme. 7:20 de la mañana, 1 de julio de 1916.

The explosion of the mine beneath Hawthorn Ridge Redoubt on July 1, 1916. See Image:Hawthorn Ridge mine 1 July 1916 2.jpg for a later photograph in this sequence.

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This photograph Q 754 comes from the collections of the Imperial War Museums (collection no. 1900-09)

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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)
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See also Copyright and Crown copyright artistic works.

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	Dyddiad / Amser	Hyd a lled	Defnyddiwr	Sylw
cyfredol	17:09, 27 Ebrill 2017	956 × 761 (185 KB)	Hohum	rv, too grainy
	11:26, 15 Chwefror 2014	956 × 761 (426 KB)	Soerfm	Contrast
	21:42, 15 Chwefror 2012	956 × 761 (185 KB)	Quibik	Cleaned up coherent noise using FFT.
	04:23, 27 Ionawr 2006	956 × 761 (125 KB)	Gsl~commonswiki	lightened further
	02:35, 27 Ionawr 2006	956 × 761 (140 KB)	Gsl~commonswiki	set levels, sharpened
	02:34, 27 Ionawr 2006	956 × 761 (78 KB)	Gsl~commonswiki	larger version, unmodified scan
	02:32, 27 Ionawr 2006	600 × 397 (66 KB)	Gsl~commonswiki	original version from en