Mexico Postal Issue of 1874-1883 (Hidalgo Heads) by R.R. Billings. A study of the stamps with tables showing the quantities delivered each year to the post offices. Cloth covers. 81 pages. Used, VF
The Travelling Post Offices of Mexico by Jay Grace Walmsley. A study of the traveling post offices, the postal history and cancellations. Well illustrated in color. 2014. Cloth covers. 146 pages. New, VF
