About the site
This site is owned and maintained by Mark Glusker. I work as a Principal Engineer for Novartis in San Carlos, California, developing new medical devices.
The mechanical calculating machines displayed on this site are all from my private collection, gathered from various sources over the past ten years. To try to keep a limit on the size of the collection, I have focused on fully automatic calculators commercially available during the 1960's, and where possible, only the top-of-the-line models from each manufacturer.
The other half of the site features the model I designed and built of Thomas Fowler’s ternary calculating machine. This is a project that owes its existence to Pamela Vass and David Hogan, of Devon, England. I am grateful to them for the opportunity to help recreate a unique calculating machine that had been lost to the world for over 150 years.
All text and pictures on http://www.mortati.com/glusker and its subdirectories are copyright 1999 – 2005 Mark Glusker unless otherwise noted. Images and limited portions of text may be used for non-commercial purposes if credited as follows:
“Mark Glusker http://www.mortati.com/glusker”
Please contact Mark Glusker for permission to use text and images for commercial purposes.
Site
history:
29 January 2005
first
version of the new site published
28
May 2005
added Marchant
Tenkeymatic and Olivetti
Logos 27-2
added video
of Fowler machine to
the "About
the machine" pages
26
November 2005
added Friden
SBT and Victor
79-88-54 and
Victor 10-871
added placeholder page for Other Calculating Devices
all images copyright Mark Glusker 1999 to 2005 - all rights reserved