Aircraft Clock, 8-Day, Center Knob, on Wooden Stand P-39 plus original instructions

plus original instructions

In making readings

Its hard to find another in better condition than this example

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

Aircraft Clock, 8-Day, Center Knob, on Wooden Stand P-39 plus original instructionsThis is a WWII era US military 8 Day aircraft clock, with a center knob, mounted in a wooden stand, likely walnut or mahogany judging by its grain. Although the identification label is missing, we believe that it is likely an Elgin made between 1931 1939, but interested buyers should confirm this on their own. The numerals 3, 6, and 9 are painted in Munsell green, indicative of use for US Navy aircraft. The center knob will adjust the time when pulled