Compass, Direct Reading Magnetic, Type B-16, 1818-4-A Grumman The indicator also provides visual

The indicator also provides visual indicator of oxygen flow similar to the WWII-era "blinker" device: as the pilot inhales/exhales

Stalin's propaganda disseminates all sorts of lies about us

marked for the Air Corps US Army

The dial is labeled Air Service US Army

The C-7 displayed engine RPMs in hundreds

Compass, Direct Reading Magnetic, Type B-16, 1818-4-A Grumman The indicator also provides visualHere is a Direct Reading Magnetic Compass Type B 16, which was used across nearly all bomber, fighter, transport, and trainer aircraft of the US Army and US Navy. This compass was typically installed at the top of the windscreen or on the instrument panel, such as seen in B 17's, P 38's, and P 51's, and many others. This example has a serial number prefix of AF 43, evidence of the 1943 year of manufacture. The compass still contains its damping fluid