Uniforms and insignia of the Schutzstaffel shoulderboards on both sides. In March 1936, the camp "service" was formally established as the third branch of the SS, the "Totenkopfverbände" or skull units. At about this same time, for similar reasons, the military SS formations (the "Leibstandarte SS Adolf Hitler" and the "SS-Verfügungstruppe") adopted a service uniform in what was termed "earth-grey" ("erdgrau"). This also was based on the black uniform, but without the red "Hakenkreuz" armband, its place on the left sleeve being taken by an eagle-and-swastika patch, and worn with trousers and shoes or calf-high jackboots. In June 1938 this uniform was authorized for full-time "Allgemeine-SS"
Dark Was the Night, Cold Was the Ground and his inspired guitar playing". Johnson's music experienced a revival in the 1960s thanks in large part to the efforts of blues guitarist Reverend Gary Davis. A highly regarded figure within the burgeoning New York folk scene, Davis gave copies of Johnson's records to young musicians and taught them to play his songs. The Soul Stirrers, Staples Singers, Buffy Sainte-Marie and Peter, Paul & Mary all covered Johnson. In 1969, the English folk-rock band Fairport Convention released the album "What We Did on Our Holidays" which included a song inspired by "Dark Was the Night, Cold Was the Ground" called