10.5x11” envelope copyright 1934 Einson-Freeman Co. Inc. Envelope has images showing Buck Rogers and Wilma Deering (of which helmets were made for both), each holding “Rocket Pistol” pop gun. Reverse has action images of Buck Rogers, Wilma, Killer Kane and Ardala. 2.5x6” “The Stone Shoe Company” paste-over at bottom. Envelope has obvious heavy margin wear with numerous splits/tears and is just Good overall but with exceptional graphic illustrations. Comes with 5.5x9.5” cardboard pop gun with paper insert for producing “pop.” Gun has usual and typical creasing at handle and trigger guard from use, but paper insert is still firmly attached. Light dust soiling. Fine. 9.75x10.75” folded cardboard “Buck Rogers” helmet has scattered faint creasing and is folded as issued. Adornment at top of helmet has some surface paper tears and darkening. Fine/VF. Comes with original elastic strap. An extremely rare set. Complete.