Animated drive principle representation of a mechanically propelled <a href="https://en.wikipedia.org/wiki/Shaper" class="extiw" title="en:Shaper">shaper</a>
<a href="//commons.wikimedia.org/wiki/User:Silberwolf" title="User:Silberwolf">Silberwolf</a>
published 21. Mar. 2006
created by <a href="//commons.wikimedia.org/wiki/User:Silberwolf" title="User:Silberwolf">Silberwolf</a>