Explorer, major general, and politician. As an explorer, he mapped the Oregon Trail; as an army officer, he played a prominent part in conquering California during the Mexican War; as a politician, he was, in 1856, the first Republican presidential candidate. Ink signature, “John C. Frémont,” on an off-white 3.25 x 2 card. In fine condition, with a subtle touch of soiling. R&R COA.