6,6cm and 12cm KundK monitor guns shells-info needed

[al'saad]

I would appreciate any info regarding shells on photos. Those shells are uncovered during clearance of Koros monitor wreck in river Sava where she sunk in June 1944. Calibers correspond to those of Koros guns 120/35 and 66/42. Cutaways, schematics or any info would be very helpful. Thank you!

 

[HAZORD]

What nationality was the Koros?

 

[al'saad]

1892-1918 austro-hungarian as koros
1918-1941 kingdom of yugoslavia as morava
1942-1944 croatian as bosna

main guns were 12cm Krupp L/35 and 7cm(6,6) Skoda L/42

 

[Alpini]

the 120 mm is a austro-hungarian shell but sorry that's the only thing I can say...

 

[al'saad]

on 12cm case around the primer is written "berndorf" and 6,6cm shells are filled with black powder.