Original Item: Only One Available. This is a very good original Canadian-made WWII No. 36M Mk I Mills grenade, dated 1945 and fitted with a white-painted finish consistent with a training or instructional configuration. The grenade retains its base plug and substantial inert internal components, with Schultz Diecasting Co. markings present both on the plug and internally. It is completely inert, contains no explosive material, and is intended solely as a historical display artifact.

This example is complete with internal parts (no explosives!) and a white paint job, likely denoting it as a trainer, with a red-painted marking on the side. It is totally inert, and cannot be converted to an explosive device. Like all deactivated ordnance, this is Not Available For Export.

The cap on the bottom reads:

No. 36 Mk. I
45 (S)

The S in a small box denotes manufacture by Schultz Diecasting Co., Wallaceburg, Ontario, Canada. Removing the bottom cap reveals markings inside, including the same S in a box for the same maker next to 1945.

The detonator tube is inside along with the spring but it no longer sticks out of the top and rattles around inside. It falls out if the cap is unscrewed on the bottom. There is a painted marking in red but it is too scuffed to read. Maybe HXP KA?

The National Army Museum specifically records that the M originally indicated “for Mesopotamia” and identified grenades specially waterproofed for tropical service. The design proved successful enough to remain a standard British and Commonwealth grenade well beyond its original theater-specific purpose.

By WWII, the No. 36M Mk I was one of the principal fragmentation grenades used by British and Commonwealth forces.

Canadian manufacturers participated extensively in wartime production, and surviving museum examples include Canadian-made No. 36M Mk I drill grenades manufactured in Ontario during 1944.

The heavy cast body retains the familiar externally segmented form associated with the Mills family.

The segmentation was not intended to guarantee that the grenade would fragment neatly along each groove. Rather, the external pattern aided handling while the cast body produced irregular fragmentation when originally used in service.

Three painted red X markings are documented as indicators of the waterproofed No. 36M configuration on live-service examples, while colored bands were also used to denote particular explosive fillings and other status information.

Condition overall is very good for an inert WWII training or instructional grenade, with substantial white paint remaining and clear 1945 Schultz manufacturer markings. The internal tube and spring are present but loose, and the red-painted body marking is heavily worn and only partly legible.

With its 1945 date, Canadian Schultz Diecasting Co. markings, white-painted training-style finish, surviving inert internal components, and complete No. 36-pattern body and base plug, this is an interesting late-war Canadian example of one of the most recognizable British and Commonwealth grenade designs of WWII.