Very historic, when the Soviets did the dual shot, with Tereshkova, who is still alive, I’m told, the first woman in space, and still a hero. This was the joint Vostok Mission 5 & 6, and is on a cheaply printed 8 x11 paper calendar for Aug 1964, in (I think) Armenian script.
I have 4 of these and sold about 6 of them for $8-$10 each. I offer this at $6 each, or $20 for all 4, plus 3.55 shipping, shipped flat, rigid