The World of Classic Stamps: 1840-1870 [By] James A. MacKay.

New York: G P Putnam's Sons, 1972. Hardbound, about 9.75 inches tall by 7.5 inches wide, 334 pages. Appendices, bibliography, index. Features 200 stamps illustrated in color and 300 stamps shown in black and white. This was the first book to trace the birth and development of the adhesive postage stamp on a global scale.