Hello !
The 25TP tank is too exhausting, I gues it is a good project for long & cold winter nights

I need to rest and scratch sth. more factual.
I present "The 120 mm relaxing" project - scheider 120 mm canon"
In 1939 Polish Army got some amount of these guns (38), most of them were used in 6th Heavy Artillery Division. They were based on French canons mk 1878 and widely modified in Poland. The curiosity is that the 6th HVD unit was motorised, whereas vast majority of our artillery was horse-drawned. Main Polish artillery trailer was C4P with 120 mm canon:
First effect of infatuation
As if out of Polish equipment documentation standards I manage to find quite "rich" resources - round 10-15 good photos. There was problem with dimensions but I found some relations between 120 mm canon and 155 mm hotwizer (both Schneider).