Take it to the Gold and Silver pawnshop in Las Vegas.
Or his good friend down the street.

Take it to the Gold and Silver pawnshop in Las Vegas.
Many years ago, I bought some 1930's/40's German propaganda books from a person in Germany just after the Berlin wall came down. Most of them are hardback, and some nice condition than others. All are written in German with the standard rah-rah pictures of all the Nazis and their armies and how great they thought they were.
I found these recently in a storage tote that I had almost forgotten about and I think one of them is personally signed by Herman Goering. The book is a 260 page hardback book published in 1941 called "Luftmacht Deutschland". It is mainly Luftwaffe fighters of the day and all written in German. However, the first few pages in there is an inscription which looks like an actual signature of Goering. I compared it on Google images and it is near identical. I was going to just send this stuff to auction, but I might get this one appraised.
In the front of the book, it looks like it came from a personal library of some German named "Hans Joachim Mann"...A simple google search reveals someone of that name that was in charge of Germany's post war Navy and was born in 1935? It may have been in the family or someone else with the same name?
I wonder if PSA/DNA who authenticates baseball cards and autographs would do this and how much?