Albeit in German, the following article in a special section of the SPIEGEL magazine (dedicated to historic events) and it's picture gallery might be interesting to all the forists who admire the fine art of engineering of mechanical calculators:
http://einestages.spiegel.de/static/topicalbumbackground/3327/superhirne_im_xxl_format.html
Best regards,
Peter A. Gebhardt
Edited: 10 Jan 2009, 5:40 a.m.