~ 1957 Kelvin Hughes KB 317/02 Built Differential Cabin Pressure Gauge ~
This cabin pressure gauge was made by Kelvin Hughes in 1957, it is type KB 317/02 and measures from -1 PSI to 5 PSI.
The dial reads from “TYPE KB 317/02 KELVIN, PRESS -1 TO +5 P.S.I.”. The back of the case is marked with a recessed British broad arrow. Also is stamped FEB 1957.
~ Dimensions ~
The height and width measures 3.3 inches (8.4cm) with a depth of 5 inches (12.6cm). It weighs 0.430Kg.
~ Condition ~
The paint work is in excellent condition overall with minor scratches here and there to the casing. The dial and glass are also in excellent condition.