Cased set of weights
circa 1886
Set of metric weights
circa 1886
Glass Experimental Metric weight
Glass Experimental Metric weight
Glass Experimental Metric weight
Glass Experimental Metric weight
Glass Experimental Metric weight
One of eight glass Experimental Metric weights of special shape for 1 kilogramme
Glass Experimental Metric weight
Glass Experimental Metric weight
Set of 13 glass metric weights from 1000 grammes to 0.001 gramme adjusted with mercury
1870-1876
Thirteen Quartz Metric Weights; Standards Commission, 1870
1870