Gauge, Pressure

Brass gauge with glass front. Has a flat surface with the numbers 0-30 around the outside in increments of 5, and a movable arrow in the centre. The gauge is attached to a pipe with the pipe having a valve lever on the side of it. The manufacturers information is on the surface of the gauge, "DRYSDALE & CO LTD. YOKER-GLASGOW" It is also labelled "lb/in2". There are three small holes on the bottom metal part. The reverse side is a grey colour.