> Thanks so much George & Justin   ... stiction sounds plausible
> Gus

There is a reason that balance scales use a knife edge on a hard stone like=
 agate as the balance point. I remember my dad telling me that he and the g=
uy he worked for had replaced a broken balance edge with a brass one they m=
ade. Ended up with an inspector from weights and measures department coming=
 around to interview them and tell them not to do it again.


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