In article >,
Steve Pope > wrote:
>Victor Sack > wrote:
>
>>axlq > wrote:
>
>>> For the past 40 years my mother had (from Germany) this incredibly
>>> useful kitchen scale. It needed no batteries, had no moving
>>> mechanism (just a couple parts you move yourself), simple to
>>> operate, fool-proof, etc.
>
>>Is this anything like what you are looking for?
>
>I get the impression the OP is describing a balance with no
>base, in which the knife-edge lay directly upon a surface such
>as a counter.

Exactly!

The "knife edge" is actually a rounded thing, and you slide it along the
beam to balance it. The beam has weight readings written along its top,
and the knife-edge slider thing has a mark on it so you can read the
weight.

-A