Title
Railroad tabulating machines
Catalog Number
102734227
Type
Document
Description
These folders include at least one report authored by McPherson.
Date
ca. 1921-1932
Publisher
Tabulating Machine Co.; International Business Machines Corporation (IBM)
Category
Technical Paper or Note; Promotional Material; Specifications
Collection Title
John C. McPherson collection
Series Title
Technical papers and articles
Credit
Gift of Ray Polivka