Signed by both authors on front endpaper, with an inscription from Albert. Third Revised Edition, 1951. Hardcover in Dust Jacket. ; 264 pp. ~8.75" x 10.75". ; Illustrated throughout with b+w photographs. Illustrated endpapers. Very Good Condition.  Please examine photos closely . ; Limited light shelf wear & aging to covers. ; Binding is firm. ; Jacket is clipped at bottom corner of rear flap, shows moderate wear & aging, ; light soiling, wear at corners, loss at bottom of spine, ; loss/creasing/cuts at rear bottom edge. Protected in clear sleeve -- there is glare in the photos. Bookseller's notations in pencil at upper corner of front endpaper, next to signatures; light waviness at fore edge of leaves; o/w i nterior is free of markings, with very limited mild soiling in margins. Please ask any questions before purchase. All sales are final. Thanks . . .