The continuing development of this Archive is in memory of Herman van Herwijnen (October 15, 1929 – August 8, 2004).
Herman was a prominent member of the Dutch Circle of Slide Rule Collectors. His major work was a CD database with over 5000 slide rules cataloged (including images). This Archive is a continuation of that work.
In addition he co-authored the book Calculating on Slide Rule and Disc and published many times in the Journal of the Oughtred Society.
Two facilities are available here:
(a) The ability to search Herman's Archive and
(b) The ability to add to Herman's Archive.
Search Herman's Archive
Update Herman's Archive
The above pictures were taken by "George Dickel" aka Richard F Lyon at IM2003.
Created by Rod Lovett.