A friend of mine found the following in his fathers gun cabinet. His father entered WWII in Germany towards the end of the war:
50cal case, HS: FA 42, fired
The case has been shortened and renecked to fit a round cigarette lighter which sets in the case. There is a blue metal bullet shaped cap which covers the lighter. Tryed to take pictures to attach but they are too blurry. Trying to find out if these were presented to a specific unit or any other info someone may have. Also interested in an approximate value. Is in very good cond.