Improvements in the methods of and apparatus for compiling statistics: complete specification
The original patent specification, and thus the first printed account, of the Hollerith electric tabulating machine.
Contains 7 pages of patent application and 3 fold-out diagrams of proposed machine.
Darling and Son, Ltd
Place of Publication
7,  p.
overall: 3/8 in x 8 in x 11 1/4 in
Gwen Bell artifact and book collection
Algorithms, tables, and history of calculation books
The Gwen Bell Early Book Collection of Algorithms, Tables, and History of Calculations