Late 1920’s (?) Vintage American Industrial Oak Rolling Stock/Library Ladder. Manufactured by I.D.Cotterman, Chicago, Illinois. 9 1/2' tall. It would roll on a railing (not included) attached at the ceiling.
Category
General Antiques and Collectibles
Medium
Wood with metal brackets and wheels
Distinguishing marks
I.D. Cotterman, Chicago, Illinois raised lettering on the bracket