Fuel Pressure Indicator, Dual Engine, 0-25 PSI, AN-5772TIA US Navy

Here is a 1940-50s-era dual engine Fuel Pressure Indicator made by Edison PN 34955, for aircraft of the US Navy.  See photo showing the yellow USN anchor symbol stamped on its back case.  Also, a service stamp has been affixed to its side indicating it was once serviced at NAF DET, or Naval Air Facility Detroit (MI).   It may have been used in a dual engine aircraft (such as the PBY Catalina or PBM Mariner), or paired with another in a four engine aircraft (such as a PB4Y Privateer).  

The instrument is in fine condition for its age. The markings are clear and the glass and case are intact.