Prominent American explorer, military officer, and politician (1813–1890) who mapped the Oregon Trail, played a prominent part in conquering California during the Mexican War, and ran in 1856 as the first Republican presidential candidate. Scarce ink signature, “J. C. Fremont, 2d. Lt. Topl. Engineers,” on an off-white 4.5 x 1 slip clipped from a larger document. Uniform toning, a few light spots of soiling, irregularly trimmed edges, and a stray ink mark passing through the signature, otherwise fine condition. RRAuction COA.