Mural on Pioneer's Palace, Moscow, 1969
Members of the IEC are headed into Moscow Pioneer's Palace (thanks @masha!). With all of the briefcases, I assumed that the conference was held here, but this is a youth center... I love the mural, though.
Taken by my grandfather David C. Cook on a visit to Moscow for a meeting of the International Electrotechnical Commission. Development stamp is June, 1969, so perhaps this is May.
(Photo was previously titled "Mural on Conference Hall")