I’m impressed that they were able to find six functional T-34s. (I’m not good with the individual models...can anyone tell if they’re T-34/76s or the end-of-war T-34/85s?)
One of them is a T-34/76, the rest are all T-34/85s.
Recalling scenes from the movie “Liberation” (1968) about the Battle of Kursk on YouTube, I’d say the old MosFilm kept a huge stock of T/34’s and captured German tanks.
“able to find six functional T-34s”
They are pack rats when it comes to hoarding old weapons. Look how many Mosin Nagants are still around!
Maybe they borrowed the T-34s from North Korea?
A lot of tanks from both sides were lost and abandoned in winter conditions. When spring came, what do you know but the ice beneath them melted and suddenly the vehicle is at the bottom of a lake, river or bog.
There are lot's of YouTube videos of tanks and other armored vehicles being recovered in eastern Europe. Many of these are subsequently restored to operating condition: http://www.youtube.com/watch?v=GYuzqSfaSRU