Scope and Contents This collection consists of engineering drawings, commission lists, and photographs from the office of Snider and Rotz Engineers. It covers the period 1912-1993. Most of the projects are in Indianapolis, Indiana.The commission lists are eight bound volumes that chronologically document the firm’s commissions from 1913 to 1981. The drawings are mostly mechanical drawings for heating, ventilation, electrical wiring, and plumbing on many different kinds of projects from...