In the course of doing research for my own thesis, I came across this very interesting thesis written by someone named Seth Givens in 2010.
It is about American souvenir hunting in World War II, and has plenty of references to Lugers as a common prize and in anecdotes used for supporting his points. If this link does not work let me know and I will try to find another way to upload it.
https://etd.ohiolink.edu/pg_10?0::NO...hiou1275450120