Grenade identification

[amber2010]

I've had this grenade around the house for years. It's deactivated of course and has been mounted on a stand. I have no idea what kind of grenade it is nor if it's Allied or Axis, 1st or 2nd WW. Has anybody got information on what is? It's obviously some demo model used for some type of training.
Thanks

 

[buffdog]

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Looks like a Japanese Type 91 or 97. However, it is not, as these grenades have six grooves.

The seven grooves tend to identify it as an early Type 28 (1938) Chinese Nationalist grenade that can be attached to a handle and thrown or also used as a rifle grenade. As a rifle grenade, it was launched by a unique Chinese designed attachment for the Mauser rifle. Might be wrong though.
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[green]

Looks like a German WWI rodded rifle grenade. When assembled the open end of the cup was forward.

 

[buffdog]

Looks like a German WWI rodded rifle grenade. When assembled the open end of the cup was forward.

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GREEN is right on this one. I was not at home when I posted my reply, but checked my reference library when I did get back home.

My Bad! Here is a picture of a German rod type rifle grenade. The disk that is being used as a base for your grenade has the cupped end facing forward when it is fired, an attempt at stability so that the fuze lands first.

This is the Karbingranate m 1914.
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[Ed Smurf]

You guys sure know your stuff...I'm impressed.
However the fact is that both the German and Japanese models seem very similar, (cylinder and grooving).
This tends to make me believe that the Japanese were very good at copying established designs., or had some kind of military exchange program in the pre war years....or just coincidence.
Banzai

 

[amber2010]

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GREEN is right on this one. I was not at home when I posted my reply, but checked my reference library when I did get back home.

My Bad! Here is a picture of a German rod type rifle grenade. The disk that is being used as a base for your grenade has the cupped end facing forward when it is fired, an attempt at stability so that the fuze lands first.

This is the Karbingranate m 1914.
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Thanks . At first I actually thought it was a Canadian show and tell grenade for training purposes. Never expected it to be German and from WW1.