Wednesday, September 16, 2015
NAPP's Numbers Volume One is "A Study of the Plate Number Combinations created by the Overprinting of U.S. Postage Stamps for use in the United States Possessions and Administrative Areas 1899-1946."
This work by Joseph M. Napp lists "plate number and position combinations" for Canal Zone, Cuba, Guam, Hawaii, Philippines, Puerto Rico and Shanghai.
The third edition is copyrighted 2000.
My copy is numbered 178 and is signed by the author.
Introductory terms and definitions are given in this illustrated catalog for the specialist. Cover illustrations are in color and for the inside pages in black and white.
Bought my copy from the IPPS bookstore in the early 2000s.