ORIGINAL WWII AAF SUCTION GAUGE 0-10 (3,4,5) AN5771-5  DATED 1944.  VERY GOOD CONDITION.  USED IN ALMOST ALL USAAF AND NAVY AIRCRAFT INCLUDING THE P-38; P-40; P-51; P-47; B-17; B-24; B-25; B-26; B-29; F4U; F6F; SBD; ETC.  MARKED AS 1944 MANUFACTURE, AT THE HEIGHT OF BOTH THE EUROPEAN AND PACIFIC WAR EFFORT!  THANKS FOR LOOKING!