Labels:beer mat | book | bulletin board | cassette tape | clock | person | tribute album OCR: LOOK OUT Nicknamed Jim Crow because of his lofty perch, the look ino- sounded series of calls on his hunting horn to signal the approach of friends or enemies He also kept his eyes open for signals on the horizon. A blast on the look -out's horn could also mark the begi inning and end of the workers shift. Warfare papuned beginning