Peter Weston had previously published Speculation. For his return to fanzine publishing, he originally launched Prolapse in 1983 as an apazine. In 2006, it was relaunched, and featured letters of comment on the previous two issues. With the fourth issue, Weston announced its focus from that point forward would be the history of British fandom. It was subtitled "The Time-Travelling Fanzine".
Art work and photography were contributed by Bill Burns, Keith Freeman, Sam Long, Mike Meara, Lars-Olav Strandberg, Ina Shorrock, Andrew Stephenson.
Also included was an extensive letter column with long letters from Claire Brialey (Journey Planet, Steve Green, Jim Linwood (Typo), Joseph Nicholas (Vector), Darroll Pardoe (Les Spinge), Rosemary Pardoe (Wark, Ghosts & Scholars), Charles Platt (Beyond), Mark Plummer (Banana Wings), Doreen Rogers (Vector), Simone (Walsh) Restall (Seamonsters), Lloyd Penney (Torus),