3 Modern knives from Hepp Pforzheim for airlines 1970s vintage transportation hc2123

3 Knives from the 1970s made by Hepp Pforzheim for an airlines but only the emblem is marked and I don't know which airlines. The knives have half serated blades and are in the modern style associated with Danish/Scandinavian modern. They have had light use and still in great condition. They are 7 1/8 inches long.