Cartridge Case Identification Requested

[Bonnex]

A friend asked if I can identify the cartridge case shown in the attached photographs. I don't know it (not my field) but I am sure many of you can put a designation to it and perhaps say what ordnance it was used with. I apologise for the poor legibility of the stampings on the base. The case is about 4 feet long and 12 inches in diameter (305 x 1201R) [30.5 cm]. Many thanks.

 

[earni74]

Hello Norman, you can start here, German Naval 30.5cm x 1220mm SK L/50 rim diameter 350mm, I can't say more than that but I am sure someone can add to my comments,these big shells are not my thing
Mick

 

[Bonnex]

Hello Norman, you can start here, German Naval 30.5cm x 1220mm SK L/50 rim diameter 350mm, I can't say more than that but I am sure someone can add to my comments,these big shells are not my thing
Mick

Mick,

Many thanks. Following your lead I found some splendid information at:

[FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]http://www.navweaps.com/Weapons/WNGER_12-50_skc12.php

and

https://www.naval-encyclopedia.co/ww1/germany/kaiser-class-battleships

Most grateful.

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