A diagram of Oregon
USA: Senate 37th congress second session, 1861. Size : 436x582 (mm), 17.125x22.875 (Inches), Coloring: Hand Colored, Category: Maps United States West Washington & Oregon;. Size : 436x582 (mm), 17.125x22.875 (Inches), Coloring: Hand Colored, Category: ; Maps United States West Oregon.