This is a set of ten Comete 55 model rocket motors packaged for retail sale. They are made of pasteboard and contain non-explosive propellant which burns for 7 seconds. A motor is used only once to power a model rocket. The L'Avion de France firm in France manufactured them.
G. Harry Stine donated this artifact to the Museum in 1973.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.