Possibly from Heads, Figures and Ideas Sketchbook. This drawing may be from the same unidentified sketchbook as HMF 2909, on account of the reclining figure at the the top of the recto and the upright  forms on the verso. An early version, previously recorded as HMF 2464, was reproduced in Will Grohmann, The Art of Henry Moore Thames and Hudson, London 1960, p.140.