National Philatelic Museum Vol. III No. 3.
Philadelphia: National Philatelic Museum, 1951. 6 x 9". Pp. 315-490. Light soil & rubbing to wraps, top of spine sl. dented, corners creased. First two pages have tiny chips at bottom corner. 1851-1857 Exhibition and Convention issue. B/w illustrations. Very Good Wraps (Item ID: 10823)