Original U.S. WWII Homefront “Know Your Airplanes” Plane-O-Graph Recognition Board with Squadrons on Back Japanese Marines APS-6’s greatest improvement over previous

APS-6’s greatest improvement over previous AI sets was its new “double dot” display system

then later in the 6th Infantry Division

Both grip panels are also stamp numbered 943 on their interiors as well

around the HJ (H Jugend) diamond logo

N ordnance sub-inspector marking

Original U.S. WWII Homefront “Know Your Airplanes” Plane-O-Graph Recognition Board with Squadrons on Back Japanese Marines APS-6’s greatest improvement over previousOriginal Item. Only One Available. This is a fascinating piece of WWII homefront ephemera, a Know Your Airplanes Plane O Graph Recognition Board. The dial consists of two die cut wheels held together w rivet at center. When top wheel is spun, die cut opening reveals different warplane illustration along w in flight silhouette. Top wheel also lists the names of some featured planes, including P 51 Mustang, B 17 Flying Fortress, P 40 Tomahawk, P 38