Impossible to find experimental album that was commissioned by steel manufacturer Klöckner in 1973 and never commercially distributed. Günther Becker was famous for his pioneering use of synthesizers and percussions. All of his records are rare but this one is a particular hard find. Some wear to cover spine and the slightest of scuffs visible under bright light. Could be NM but rather grade conservatively. Collectors item with booklet and gimmix cover. Don't sleep, we won't have it again.