Before the first Pink Floyd album "The Piper at the Gates of Dawn" from 1967 appeared, in that year 2 singles were released, "Arnold Layne" and "See Emily Play" which were not included on this and the next Pink Floyd album. It was not until 1971, on May 14, that the band's compilation "Relics" saw the light of day, where the above-mentioned works were included. The original singles from 1967 reach almost gigantic sums close to the value of the first pressing of "The Dark Side of the Moon"