Folio. 25 color plates, 8 trial proofs, (11)pp commentary, progressive states of plate 8 and plate 11, collotype proofs, and matching guide-sheet and stencil, this last sleeved at the rear board. A combined facsimile of "copy B" belonging to Lord Cunliffe and proofs from Kerrison Preston. Among the most, if not itself the most, momentous of Blake's prophetic projects, second perhaps only to his vision of America, to which this was a complementary work. Bound in full brown morocco with gilt titling at spine. Spine sunned, else near fine in slipcase, lightly worn.