Unknown 9 cm L/45 case

[Hoeksel]

Today found this great case, measuring 90x679R121. It is looking like an AA gun. The manufacturer is French (Schneider-Bordeaux) and the date 1922. But the markings are not French (designation "L/45" and "No.1" and the use of "cm") so I must assume export. Looking in my books I only know of 1 9 cm L/45 gun used both in WW1 and WW2. It is an Austro-Hungarion navy gun. Can anybody identify the country that used this ammunition?

 

[charley777]

Cannone da 90/53 AA
Cannone da 90/42 naval
Cannone da 90/50 naval
M41 SPG ....................................all Italian guns using 90x679R x121 cases. Perhaps the L42 is the L45 in another system (eg....Barrel length by some nations didn't include the chamber, but in others, they did)

 

[fert]

Hello,
90/42 and 90/53 didn't use same case.
Ex austro hungarian 9cm L/45 was adopted as 90/42 in Italy.
cases are slightly different:
90/42= 95x679 R121
90/53= 95x675 R118

90/42 is bottle necked and use the navy type small primer
here pics



these shells could be fired from both, i think it's an old austro hungarian design




I don't know who used this gun.... but, my two cent on Jugoslavia who kept many austro hungarian artillery. France too provided material to Jugoslavia.
Standardization of case marking from what I know occurred in 1928-29 before I never seen jugoslavian standard marked cases.
best regards

 

[HAZORD]

You would actually have a lot easier time identifying the case if you showed a photo of the side view of it.

 

[Hoeksel]

Here images of the 9 cm L/45 (right) next to the Italian 90/53. As stated by Fert, the dimensions of the 90/42 are the same as my 9 cm L/45 case and is like the 90/42 bottle necked. After some digging, I did find that indeed Jugoslavia used these guns after WW1 on their ships.