on Jul 23, 2016
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Known Information
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This scale was used by the University of Rochester until recently
The chain-weight balance allowed more rapid determination of small weights by substituting a precision chain weight for the small (<100 mg) weights of the traditional balance
This instrument also has a notched beam allowing up to 1 gm of additional mass(for a total of 1.1 gm) to be added without opening the case
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