Mexico, 8 books including The Cancellations of Mexico 1856-1874 by Joseph Schatzkes (2x, nrs. 79 and 213 out of 265 copies issued), The Pre-Stamp Postal Markings of Mexico by Otto Yag (Elmhurst 1965) and The Postmarks of Mexico 1874-1900 by Karl Schimmer (Elmhurst 1977)
