BALL SHOOTING SPACE GUN - SELCOL - ENGLAND

A clear plastic ball shooting gun. 7" 18cm The transparent plastic gun has red detailing. It holds five balls in a cylindrical upper chamber. These drop into the lower barrel and are fired by cocking the mechanism and pulling the trigger. Distinctive hoops on the barrel and a vertical sight at the back. An Australian advert shows this gun design, dating it to no later than December 1955.
ping pong

Packaging?

This is the same basic design as the Sensacional Pistola Lanza Bolas and the Pongo Pistol.