1848 North America by William Orr -London

1848 This 9 1/2" x 12 1/4" pre-gold rush North America maps a steel engraved map with excellent western details. from the California coast and rivers to identified Pacific islands, over to San Antonio and Matagorda Texas, Albuquerque , Santa Fe, plus riparian information from the lewis and clark publications, still ommitting Fremont topography of 1848 but  very fine map