After the failure of the SMK during the Russo-Finnish War (a.k.a. the Winter War), the similar T-100 was re-evaluated and several designs were proposed to be built on the chassis, after it was partially dismantled. The only design that went anywhere was the T-100Y, which mounted a 130mm naval cannon in a fixed casemate. Since it was no longer a tank, the name SU-100Y was also used at the time, and that is the name it is most commonly known by. The SU-100Y was used in the defense of Moscow, however all reports claim that the Germans never actually got close enough to be within firing range of this beast.
The SU-100Y is the subject of my very first CAD tutorial, which you can view here:
https://www.bitchute.com/video/k1nwJyjzfeVN/
Be warned, however, if you want to know exactly how to make one yourself, you will have to sit through 3.5 hours of some of my worst work.
Ordering the small variant will give you a single vehicle.
Ordering the medium variant will give you two vehicles.
Ordering the large variant will give you five vehicles.
Too expensive? Want it in a different colour or slightly larger scale? I sell this
exact same model on my website.