Pic #5 - Meeting in the space. By Andrey Sokolov
Pic #6 - New York - Berlin rocket propelled flight. Plan by Max Valler
Pic #7 - Two images in one. Above: the explorer vehicle of the Jupiter, by 1972 they planned the launch om the US. Below: another American plan, Moonbase.
Pic #8 - Solar smelters in the year 2000.