Oliver Frey

Oliver "Oli" Frey (born 30 June 1948 in Zurich, Switzerland) is an artist. A resident of Britain, he is known for his book and magazine illustrations – especially for British computer magazines of the 1980s – and erotic illustrations and erotic comics (under the pen name Zack) – especially in British gay male porn magazines of the 1970s and 1980s. https://en.wikipedia.org/wiki/Oliver_Frey