There seems to be some contradictory info about the user of Putilovs. Here, again:Juha Tompuri wrote:During Winter War they served at Finnish Navy (Coastal artillery being part of it)
http://www.jaegerplatoon.net/AA_GUNS3.htm#76ItK14
And in Viipuri area was situated also ItR 2 (vs. RTR 2), which belonged to Finnish Air Force (Anti-Aircraft-Artillery was part of it).
There seems to be a lack of sources considering the use of outclassed AA-gus in Winter War.
Sorry that I lost Ahti Lappi's E-address, which I used to have, Lappi being the foremost authority in AA-history.
Regards
Juha-Pekka