Hotchkiss Paris

[Bellifortis]

Hallo,
some years ago I was presented with a 37mm shellcase, that had been used as a volumetric measure in an old european fireworks factory. Attached are 2 fotos. Can somebody please explain to me the markings ?
The different punched dots with a circle around and the + above two of these. The meaning of the circle and the big 0 or O and whose mark is the manufacturers emblem ? The case is 75mm long. Is that the original length or has it been cut down ? Thanking you in advance for your consideration,
Bellifortis.

 

[Tmine35]

In Russia and Finland the round marking is for first reload marking, after that the 3 dots are other reload markings.

 

[highlandotter]

Probably the original case length was 94mm. 37x94R common Hotchkiss round

 

[Tmine35]

I have found also a shortened 37x94R case, I think length was about the same. It looked porpusely made. Most likely I posted pictures to BOCN last year?