German version
Welcome at JOM
Jörn's Online Museum

Here you are right,
you are looking for sliding objects ?
(sliding beads or sliding scales on old mechanical calculating devices)


Slide Rule-Museum

And here you can see not only old mechanic but also old electronic from the 1970s, click for the wonderful ...

ARISTO electronic pocket calculators


In this virtual museum you can walk for hours and hours without getting any footsore. More information on activities of the German slide rule collectors you will find at . Or if you are interested in more international related information please look at the American based Oughtred Society . I wish you a pleasant browse through the two departments of my online-museum. If you want to give a feedback, suggestions or some critical remarks, don't hesitate to contact me by email please:  j.luetjens(at)



This website is owned by Prof. Dr. Jörn Lütjens (Germany)

©J. Lütjens, Okt. 2016