In this episode, the cosmonauts snuck vodka in their capsule. It was revealed years later this actually occurred on some Soviet Space missions.
The name of the Russian capsule translates to "Lots of Light II."
The space capsule mock-up would also appear in the later installment "Splashdown" sporting new paint and markings.
The cosmonaut removes the vodka from a copper apparatus connected to the wall with a hose. The copper item is a samovar, used in Russia to boil water for tea. The cylinder at the top, connected to the hose, is the chimney for the charcoal used to heat the water. It gives the impression the capsule had a charcoal fire vented to the outside.