Early Office Museum
The Early Office MuseumTM engages in research on the evolution of offices and business technology based on original documents and artifacts.
An excellent site about calculator collecting - By Guy Ball
Museum of HP Calculators
Not only is this a good site for the history of the HP calculator, there is also information about
collectible calculators and their value at this site.
Office Machines Americana
Chuck & Rich's Antique Typewriter website and museum
Alan Seaver's "Machines of Loving Grace"- New!
Mr. Martin's Typewriter Museum - New!
The Early Typewriter Collectors Association
A website entirely devoted to the Comptometer.
The Old Calculator Web Museum - New!