Model decimal scale
Rare Salesman example or model of a dead-weight coal scale. Inverted Roberval with wheels and barrow handles. Large weights were placed on the bottom wood plate, smaller weights were kept on the top of the column and transferred to the top plates as required. W & T Avery Ltd. 1897
English inspectors verification mark on a lead plug ( ground bar )
Must be a joke, because it is more than unusual to give a model a verification mark.
the text " 3 CWT " is unbelievable. This rare model is about 50
cm wide and there is NO chance to put on a load of 3 CWT.
The original scale weigh up to 4 CWT and the load plate measures 46 x 56 cm !!!
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