English, c. 1931, engraved 'COUNTY BOROUGH OF PRESTON' W & T AVERY Ltd LONDON', each constructed of copper with brass bindings and brass handles and brass spirit level, each with sight glass to rear with an engraved scale, the measures engraved in the following capacities 1/2GALLON, GALLON, 2 GALLON, 3GALLON, 4 GALLON & 5 GALLON, the tallest 55cm.

Footnote: Standard working measures were specially made to be used by the weights and measures department to calibrate any of the inspector's measures that were to be taken out on site. They were used to calibrate the check pump measures taken out by Customs officers.