All are early 1940s. Three groups. First is 7.5x10.5" envelope with art image of kids using kit to identify planes. Contains photo pages picturing total of 32 aircraft, identification chart picturing 33 aircraft and three silhouettes of each, cardboard punch-out deep hole altitude height finder, paper sniper flight direction indicator, observer indication card and armband. 8-page handbook and report book. 7.25x10.25" paper sign "Junior Aircraft Warning Observation Post." Complete. Light wear to envelope, o/w Exc. Next is complete deck of "International Aircraft Silhouettes Spotter Cards." Made by "The U.S. Playing Card Co. Cincinnati, U.S.A." Standard deck of cards with each card having different silhouettes of aircraft. Light wear to box. Fine. Cards VF. Last are 22 different 4.5x7" paper photos with names/text/silhouettes of each. Multiples of each design. Total of 110 photos. Light wear. Fine to Exc.