No Edition Remarks. Unpaginated. No dust jacket. Volume IV. Dark blue pictorial boards with gilt lettering. Contains colour illustrated plates. Pagination has continued from previous volumes. Contains pages 537-697. Pages are lightly tanned with mild foxing to endpapers and text block edges. Occasional thumb-marking present throughout, with liquid drops, rubbing and a few small nicks along text block edge. Page 537 is slightly loose. Boards have moderate shelf-wear with mild bumping to corners and rubbing to surfaces. Heavy tanning to spine and edges, with visible crushing to spine ends. Book has a subtle forward lean. Darkened lettering to spine, with liquid drops on rear board.