AFGHANISTAN ITS 20TH CENTURY POSTAL ISSUES, Frank E Patterson III, 1964 (hardback w/dustjacket)
Published by the Collectors Club - handbook no. 18 - in 1964 - 208pp. Patterson's biography is on the dustjacket.
A terrific work on the 20th century issues of Afghanistan, with a wealth of information about the regular issues as well as imperfs, semi-officials and much more, including b/w illustrations.