Last summer I had a great opportunity to visit the Armeemuseum's field artillery collection in Thun (Switzerland) This display is only visible upon request.
On the very same hall I saw a bunch of WW I minenwerfer and trench guns that were tested by the Swiss Army but never entered in service. Still those test models were preserved and almost a century later are in pretty good shape. Unfortunately they aren't labeled and I was able to identify only part of them. As far as I know they were all either of German or Austrain origin. I would love to get some help.
Something I never seen before...
This one isn't new to me, but I can't find the exact id:
Looks a lot like an Austrian 22 cm M15, but a few details just aren't the same...
This minenwerfer has something in common with the German 7.6 cm, but I am not sure about it either:
The gun shown in the upper two pictures looks like a 3.7-cm Tank-Abwehr-Kanone System Fischer. Only 15 experimental pieces had been ordered in late 1918, and not all of them were ready when the war ended. One may guess how many were manufactured at all. Four of them were utilised to arm the four armoured cars ordered by Colonel Epp.
The gun shown in the upper two pictures looks like a 3.7-cm Tank-Abwehr-Kanone System Fischer. Only 15 experimental pieces had been ordered in late 1918, and not all of them were ready when the war ended. One may guess how many were manufactured at all. Four of them were utilised to arm the four armoured cars ordered by Colonel Epp.
Wow, that would make it quite a rare piece of hardware. Do you have pictures or drawing of this gun? Do we know of any other survivor? I've seen another 3.7 anti-tank gun from 1918 at WTS in Koblenz, but it's another model (Rheinmetall?).