Shown here are throwing practice grenades of the OHG40, called "blind", "Wurfkörper" or "Manipulier".
No explosive components on these grenades. The only movable thing on the grenade is the safetypin.

The post-war designation for this trainer became "Manipulier OHG40"
They exist in different colours: Yellow, silver and black.

Photo on the right is the top of the grenade shown above.

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Photos below:
Upper photo © Paul Spence. Lower photo © Cory.
Both shown next to the b/w scans from the manual.

The type on the left had a safetycap that came off like the live grenade,
the one on the right was made in one piece.

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