The Kosmos series were truly a remarkable bunch of space craft.
Pressure is 1,350 psi or 93 bar. They didn't last long on the surface of Venus, but it's miraculous that they lasted any length of time.
,,, I can't recall the year - maybe 2000 or somewhere around that time. We heard the Mir space station was going to hit the ocean, some ocean. It turned out the last chance we'd get to see it was on an early morning last pass over the lower west coast of the North Island, in New Zealand. We got up as it was still dark and walked to the beach (Tasman Sea) at Raumati where we were living at the time. As dawn rolled out we saw the surprisngly low craft on a course from Nelson (top of the South Island) to Napier (east coast of the North Island). It was a creamy colour and we could see shades/vague details on it. Never forgot that experience. It canned out somewhere in the Pacific.