Signedengraved on one arm of gauge: HR GERMANY;
engraved on other arm of gauge: MOE DIAMOND WEIGHT GAUGE
Inscribedengraved scale marked 0-60.
FunctionA device for estimating the carat weight of gemstones without the need to separate them from jewelry pieces.
The gauge calculates carat measurements of gemstones by measuring diameters with the caliper and comparing the results with a printed table.
ProvenanceUsed by Prof. Benjamin M. Shaub, Department of Geology, Smith College, Northampton, MA 01063. Prof. Shaub gifted a total of 11 instruments to the Collection, inventory #s 1997-1-1997 thru 1997-1-2007.