Diameter: 22.0cm x Height: 7.0cm
Circular glass front gauge. With the numbers around the edge from 0-30 and a metal arrow in the centre. The manufacturers information is on the gauge's face, "KINGSTON LIGHT HEAT & POWER CO. VACUUM" There is an image of a shield at the bottom of the gauge with the words, "J.M.T. SOLID DRAWN TUBE WARRANTED" inside of it.
Kingston Light, Heat and Power Company, JMT