1:720. Scale 60 feet to 1 inch. Symbol key on sheet 5." ""Rascher's birds eye view of the Chicago packing houses & Union Stock Yards, Chicago, Ill.""--plate 2-3. Birds eye view oriented with north toward the upper left. Index to company facilities and ""special hazards"" on sheet 1. ""Copyrighted 1890 by Chas. Rascher."" Organized as single, double, and triple page plates. Most plates include map or plan with birds eye view of buildings. "Fire insurance map hand colored to show building construction and available water facilities. 40 pages on 17 plates : hand colored sheets 72 x 53 cm and 72 x 105 cm or 72 x 154 cm folded to 72 x 53 cm