skoda 3,7cm shell

[fert]

Hello,
I've had this shell for a while, but only recently I did notice the Skoda marking slightly faded.
It is 90mm long, it's not a real APHE despite its shape. It has a large internal cavity and thin walls. In the apical internal part a circular shape can be seen as if something was to be inserted there.
Finally I did a test with the Czech 3.7cm vz 34 fuze, which screws on.
any help?
regards

 

[AKON_]

Hi Fert
One working hypothesis: according to the picture, view and details you gave hereit looks like a shel that was then (...1940...) used to torment (test) detonators for shock when fired, i.e. its resistance from the Škoda company.
I had a drawing somewhere .... if I find the details I will write it here.
Akon
Re : I certainly don't have a drawing
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What may help is a drawing of a shel for testing explosives (pentrite) for acceleration in caliber 3.7mm from 1936 Drawing SP 10004, dated 3.12.1936. It has a length of 93 mm; m-535g.
It was fired from a high-velocity rifle (increased pressure) the cartridge is marked internally (N 93).
I do not yet know the details of the cartridge assembly.I will probably find details about the cartridge later.
This ammunition was never part of the regulations and illustrations for operating the weapon ...
Akon