Broadsheet poster featuring texts by William Burroughs ("Martin's Folly"), Kenneth White, Alexander Trocchi and Antonin Artaud. Offset litho. 75.5x49.8cm. The first publication from Trocchi's Sigma Portfolio. An almost pristine, unfolded copy, and scarce thus, with just a single, tiny closed tear to upper edge and the barest of creasing to extremities.