Todor Zhivkov, Bulgaria's undisputed leader for 35 years, playing host to the Soviet leader Leonid Brezhnev in a hunting lodge in Bulgaria. Early 1970s.
It is a unique photo - events like this were never reported, and usually no records were kept. The service personnel were sworn to secrecy, hence the facial expressions of some in the background!
The top Communist nomenklatura were often keen hunters. Some argue this was an attempt to emulate the old ruling classes they toppled, and in many cases managed to abolish, or "liquidate" in their own terms.