Airspeed Indicator, Sensitive, 700MPH, Type AN5862-W2, US Army Air Force, WWII

The Army Type AN5862 Airspeed Indicator (also called type F-1A) was used across a number of US Army Air Corps and Air Force aircraft during WWII, including heavy bombers B-17, B-24, B-29, medium bombers B-25 and B-26, as well as light bomber A-20, according to the Accessories Interchangeability Chart dated Feb 1945. It was also used in versions of US Army Air Force WWII fighters P-38, P-39, P-40, P-47, and P-51.  This F-1A was made by Kollsman, part number 739K-03M, and has a serial number prefix of AF44, indicative of a 1944 manufacturing date. 

According to the spec sheet in the Index of Army Aeronautical equipment Volume 6 Instruments, dated 1944, the Army type F-1 is a sensitive airspeed indicator. The pointer makes one revolution every hundred MPH. A smaller inner dial indicates tens of MPH. 

It is in reasonable condition given its age.  The dial and glass are intact. It is not accurate. See photos.