Sigma notes on letterhead, letter to W.H. Smiths complaining on Cain's Book being blacklisted for sale, various documents, clippings regarding censorship of pornography, photocopies of reviews together with Trocchi's response, typescript of "A Walk on the Seamy Side" by Trocchi and D. Burnett.

Originally housed in blue envelope file marked "Censorship." Inside envelope brown folder marked "Electricty Board"