7 linear inches.
11 photographs.
University of Notre Dame class of 1911; statistican for Indiana and Michigan Electric Company.
Naval navigation calculations, 1918; class schedules, notes and blueprints and diagrams for an electric door opener, University of Notre Dame science hall; a thesis by Probst, "Modern Automatic Telephony System by the Automatic Electric Co., Chicago, Ill.," 1911; and photographs.
CPRB; GPRB