Several questions about Finnish naval artillery

[svelli]

Hi everybody! I ve got a few questions about such especified subject like naval artilleria. The first one is about marking of artillery cartridges (photo 1). What ia signification of letters RT 2 in this 57 mm cartridge? Does it means Rannikkotykistörykmentti or something another?
And next one is.... Is it (photo 2) some part of naval cannon ? May be something like the rotating base?

[Robert M Hammond]

Hi everybody! I ve got a few questions about such especified subject like naval artilleria. The first one is about marking of artillery cartridges (photo 1). What ia signification of letters RT 2 in this 57 mm cartridge? Does it means Rannikkotykistörykmentti or something another?
And next one is.... Is it (photo 2) some part of naval cannon ? May be something like the rotating base?

Dear Svelli,

Hi! I am unable to identify what the "R T 2" means. However, it appears there were *two* 57mm guns in the Mannerheim Line. My info has these as the "57/26 Ka (26 is the length in calibers; it was designated "Corporal Gun") and 57/46 NR (46 is the length in calibers; "NR" = Nordenfelt Coastal Gun). I have some more historical info. Let me know if you want this information.

All the best!
Robert

[Swing]

RT 2 means Rannikkotykistörykmentti 2 (old abbreviation, replaced to RTR 2 during ww2). HQ in Viipuri, batteries on the islands of Finnish Gulf. You can find RT 2 mark at lot of shells and many more places