Prior to the German occupation of Czech lands, the Škoda works was one of the largest weapon manufacturers in the world, famous for its artillery and later its armored vehicles. In the early 1930s, Škoda became involved in designing and building tankettes, followed by tanks. Many models, like the LT vz. 35 or the T-21 (built under license in Hungary), would be mass-produced, while others never passed the prototype stage. Work on a new design during wartime was slow but a few interesting projects would be developed, such as the T-25. This was an attempt to design and build a tank that would be an effective opponent of the Soviet T-34 medium tank. It would have had an innovative main gun, well-sloped armor and excellent speed. Alas, no working prototype of this vehicle was ever built (only a wooden mock-up) and it remained a paper project.

The story of the T-25 was a very short one and it did not progress beyond blueprints. Despite the hard work of Škoda workers, nothing besides plans, calculations, and wooden models was ever made. The begs the question: why was it rejected? Unfortunately, due to the lack of adequate documentation, we only can speculate as to the reasons. The most obvious is the introduction of the better armed Panzer IV Ausf. F2 model (armed with longer 7.5 cm gun) which could be built using existing production capacity. The first fully operational T-25 would probably only be able to have been built in late 1943, as the time needed for testing and adopting it for the production would have taken too long. By late 1943, it is questionable whether the T-25 still would be a good design, it may possibly already be considered obsolete by that point. Another possible reason for rejection was the reluctance of the German army to introduce yet another design (as at that time Tiger development was underway) and thus put more stress on the already overburdened war industry. It is also possible that the Germans were not willing to adopt a foreign design and instead favored domestic projects. Another reason may be the experimental gun itself; it was innovative but how it would perform in real combat conditions and how easy or complicated it would be for production is uncertain at best. The need for the production of new ammunition would also complicate the already over-complicated German ammunition production. So it is understandable why the Germans never accepted this project. In the end, the T-25 was never adopted for service even though (at least on paper), it had a good gun and good mobility, solid armor, and a relatively simple construction. It should be borne in mind, however, that this was a paper project only and that in reality may be the results would have been completely different. Regardless, due to its short development life after the war, it was mostly forgotten until relatively recently.