SOME WW1 ENGLISH GRENADES

Version francophone




N°24 Mk I grenade
HAND GRENADES
Battye grenade
Mills grenade
N°34 Mk III rifle grenade

RIFLE GRENADES
N°12 Mk I rifle grenade
N°20 Mk I rifle grenade
N°24 Mk II rifle grenade

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English Grenades



Hand grenades


Battye grenade Empty battye grenade

The Battye grenade
has been invented in May 1915 and is an improvisation due to a certain Major Battye who manufactured this simple fragmented cylinder in Béthune (France), to several thousands of specimens.

This grenade body was filled with a load of ammonal, and closed by a wood cork through which a hole was practiced to place a simple wick or a more sophisticated ignition system (traction or rotation type).

The use of those improvised grenades, of which this one is only one example, was forbidden at at the end of 1915 by the English army, following numerous accidents.

Weight 550 gr.

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English mills grenade English mills grenade, front view with the brass filling screw

The Mills grenade
appeared in May 1915. Inspired from an Belgian idea (Dewandre - Roland) and designed by the Birmingham engineer William Mills, it was by far the best grenade of the conflict.

The longevity of its various versions was such that it was still in use in WW2, and that i will only be withdrawn from the service in 1970 !

At the end of WW1, more than 50 million of these grenades had been manufactured by more than one hundred subcontractors.

Its handiness, its fragmentation capacity and its internal detonator system, that isolated it from the traditional problems of moisture, ensured a big part of this success.

Weight 770 gr.

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English mills grenade - bottom view, back cap removed showing the detonator English mills grenade, back cap détail with manufacturer marks (october 1915 - Calthorpe Motor)
English mills grenades, the left one has been found in Flanders near Hooge

Handgrenade n°34 Mk III - view showing the charge loading screw Handgrenade n°34 Mk III - igniter location

The handgrenade n°34 Mk III
is the third development of a n°34 grenades series, that was an english response to the german 'egg grenade', so manoeuvrable.

The three marks (Mk I - 1917 ; Mk II - February 1918 ; Mk III - March 1918) are made of a pig iron body closed with a charge loading screw, and a percussion detonator.

The Mk III model is the ultimate evolution, using the improved Mk II detonator evolution, (7 seconds delay and security copper ring), and with a narrower a body shape.

Unknown weight, Alumatol explosive charge

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Handgrenade n°34 Mk III, percussion detonator unscrewed



Rifle grenades


Rifle Grenade N°2 Mk I rebuilded. Inscriptions : 'THE COTTON POWDER Co Ltd - HALES PATENT LONDON - 8 M/M - B

The hand and rifle grenade N°2 MKI
has been designed in 1907 for exportation to Mexico by the MARTEN HALE company, but used by the French and English armies since the beginning of the war.

The grenade body, a brass cylinder, contained the explosive charge and the percussion inertia detonator. A double pig iron prefragmented ring was circling the whole section.

A 40 cm long rod with ribbon was mounted for use as a hand grenade. For the rifle grenade use, a steel rod was mounted, 25 cm long, 7 mm diameter for english weapons, or 8 mm diameter for french Lebels.

This grenade was particularly unsecure, very sensitive once the security pin has been removed.

Unknowned weight, Tonite explosive charge.

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Rifle Grenade N°2 Mk I rebuilded. Detail of the body sectionned. Rifle Grenade N°2 Mk I rebuilded. War souvenir mounting.

Rifle grenade n°20 Mk I with steel rod

The n°20 Mk I rifle grenade
is a June 1917 evolution of the famous rifle grenade n°3 Mk I of 1915.

Less expensive than its grandmother who comprised a propeller whose rotation armed the grenade at the beginning of its trajectory, it inherited however its safety reputation.

Like all the steel rod grenades, they were shot by threading them in a traditional infantry rifle gun, but armed with a special blank ammunition.

The mistaken employment of a traditional bullet represented the principal risk of accident...

Unknown weight, ammonal explosive

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Rifle grenade n°20 Mk I with steel rod - top view with unscrewed detonator cap Rifle grenade n°20 Mk I with steel rod - top view

Rifle grenade n°24 Mk II with steel rod

The rifle grenade n°24 Mk II
is an ultimate simplification, dated 1918, of the famous rifle grenades series from n°3 to n°20.

Still being shot from a common rifle armed with a blank munition, its tail was inserted into the gun tube.

This grenade body, that was not pre-fragmented, was cast in pig-iron. One can understand how this represented a big manufacturing simplification compared to the machined steel models.

The model showed on the pictures has lost its closing cap.

Unnknowned weight, ammonal

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Rifle grenade n°24 Mk II with steel rod, tail detail, with safety pin Rifle grenade n°24 Mk II with steel rod, détail de la tête, (lost) cap unscrewed