Each is about 3.5” plus the length of the fold out blades. The first two are designed identically with raised areas on the plastic grips detailing features of a rocket ship. One of these has a red body with yellow end while the other has yellow body with red end and this has an original plastic cord attached to it. The first with yellow end has inscription on one blade “Rail City Museum/Sandy Pond, N.Y.” Both of these knives have blade base marked “Camco/USA.” Both are essentially unused and NM. Third item has rocket and space man scene on one side of the grip while opposite side has chart showing the “International Morse Code.” 1/16” split by one rivet on the Code side but otherwise NM. All from the early 1950s.