Spring grocery scale
Pic SPRING 25
brass round dial with an diameter of 8" graduation in 0 - 4 Gallons, 0 - 32 Pint and 0 - 41 lb.
A big pan is placed under the scale with an 18" long iron holder, there is also a load hook which is maybe for a bottle ( gallons ). The scale is made by Salter England No. 80