A MAP OF THE UNITED STATES OF MEXICO, AS ORGANIZED AND DEFINED BY THE SEVERAL ACTS OF THE CONGRESS OF THAT REPUBLIC [caption title]

New York: Henry S. Tanner, 1846.. Folding handcolored pocket map, 31 x 24 3/4 inches, tipped into original 12mo. cloth folder. Cloth sunned. Minor foxing on pastedowns. Slight staining from adhesive at cover. A few small holes at corner folds, else nicely intact. Color quite bright and clean. Very good. In a half morocco and cloth clamshell case, spine gilt. Third edition, second issue, after the first of 1825. Each of these editions and issues was revised, and this is generally considered the most important. The map shows all of Mexico and the majority of the American Southwest, with insets providing a "Table of Distances," a "Statistical Table," and a map of roads from Vera Cruz to Alvarado. Taken from his 1822 "Map of North America," Tanner's present effort would play a controversial role in the war with Mexico and conflicting claims to territory near San Diego, here placed soundly within the United States. In the first issue, the southern boundary of California was placed further south than either the Treaty of Guadalupe Hidalgo or the Gadsden Purchase would allow. "The plate [in the present second issue] has been changed to follow Fremont in California, including the Great Basin. The southern boundary of California now extends from Pt. Moinfrains northeast to the mouth of the Gila, while the United States boundary with Sonora is still much too far south. New Mexico is still confined to a narrow strip between the Rio Grande and the mountains that form the continental divide, all east of there being Texas, which ends at the Arkansas River. North of that stream the map has been altered to show the Parks and South Pass" - Wheat. This is the first edition of the Tanner map to show the correct course of the Timpanogos and Buena Ventura rivers.

An important installment in the controversial cartography of the American Southwest. Quite scarce. OCLC locates only eight copies.

The Streeter copy sold to Nebenzahl for $40, with other Tanner pocket maps, in 1969. This lot may well be the greatest single bargain in the entire Streeter sale, as the collective value today approaches six figures. It reappeared at auction in 2007, when the Reese Company paid $22,325 for it. We later sold it to a private collector. WHEAT TRANSMISSISSIPPI II, pp.89-90, no. 364; III, p.38, no. 529. SCHWARTZ & EHRENBERG, pp.276-77. PHILLIPS, MAPS, p.409 (another ed). STREETER SALE 3824. RUMSEY 2822. OCLC 21842347.