j. m. dent (& sons(?))-owned (iirc) readers union / the science fiction book club h/cvr edition first printing, not for public sale; offered to sfbc members on the club's standard ~inertia sales terms, then to other readers union book clubs' members
cover (d-j) art (a ''tree-ring and a half, the half being by far the larger, in brown on white ground (= the paper colour)) by john griffiths
cover (d-j) price (6'-)
308pp? (check) including titles, indica etc, bound with endpapers between covered boards