Popular blogger Rustem Adagamov published an extremely curious document "Instructions to the Cosmonaut on the Operation and Control of the Vostok-3A Spacecraft".
It is noteworthy that it survived to this day, despite the formidable resolution "Destroy!", which belongs to the organizer and head of the training of the first Soviet cosmonauts Nikolay Kamanin. The instruction was only declassified in 2009...