1930 Approximate
Otisco Oil Co. Level. Material: wood, metal, glass. Size: 1 3/4" x 12". Description: red painted wooden level; black print: "Otisco Oil Co., Always on the level, with deep rock prod., L.W. Kelling. Phone Nos. N.R. 54F2, Waseca 16L13"; 12" ruler on opposite side; glass tube at top; silver metal holding glass tube in place.
Otisco business: Otisco Oil Co.