Skelmorlie nuclear bunker operated by the Royal Observer Corps from 1965-1991. The white drum would record the position of a nuclear blast on light-sensitive paper through a pinhole allowing its locat

Skelmorlie nuclear bunker operated by the Royal Observer Corps from 1965-1991. The white drum would record the position of a nuclear blast on light-sensitive paper through a pinhole allowing its location to be triangulated. Ayrshire, Scotland.