This is a De-Icing Pressure Indicator for the de-icing system used in WWII US Army Air Forces aircraft such as the B-17 Flying Fortress, B-24 Liberator, and B-29 Superfortress. The de-icing system is engaged by flipping a toggle switch. Then, the indicator displays the pressure that is being applied to the de-icer boots along the leading edges of the wings and empennage to dislodge ice which has formed, with a normal indication of 7-10 PSI.
*Condition*
This piece is in great condition with very minor surface damage. Please see pictures for more detail as they form part of our condition report.
