7304-043 LOESCHNER brassbound patent protractor level. Patented in 1921 by Henry Loeschner of Fredericktown, MO, and features a central compartment that can be popped out of the stock and used separately as a gravity inclinometer.?24" long, label looks replaced and level vials in central compartment are missing. Cherry wood is very clean, ruled brass plate along top good. Vials in the stock are wet. (GFE267)