Rough Collages - Yellow Series Vol. VIII Personal work, 2018
1967. Psychedelic poster artists Michael English and Nigel Waymouth, aka Hapshash and The Coloured Coat, with Guy Stevens, an iconic record producer who produced their eponymous album 'The Coloured Coat,' a cult classic.
Disclaimer: the LSD relation is just a creative license; there's no direct relation or evidence whatsoever.
More on the Hapshash and the Coloured Coat: It was an influential British graphic design and avant-garde musical partnership in the late 1960s, consisting of Michael English and Nigel Waymouth. It produced popular psychedelic posters, and two albums of underground music.