Featured in this lot is this U.S.P.R.R. EXP & Surveys of the 47th and 49th parallels general report plates. There are nine plates in this collection. The titles of the plates are as follows: “Hot Spring Mound,” “in the ‘Deer Lodge’ Prairie,” “of the Rocky Mountains,” “Milk River - Bear's Paw Mountain in Distance,” “Council with White Man's Horse,” “Big Hole Prairie from the North,” “Butte De Morale,” “Bear's Paw,” “Big Blackfoot Valley,” “Distribution of Goods to the Assiniboine's,” and “Fort Okinakane.” The condition of this collection of plates is fair to good, with varying levels of wear to the corners and some browning to the pages consistent with age. The measurements of this collection of plates are 8" x 11 3/8".