How Do You Go About Seeing If A Letter Really Did Come From Hitler?

Question

My grandfather recently passed away and he served in WWII. When we went through his things we found a letter that looked really old and it had the n**i symbol on it and also what looked like Hitler's official seal with his signature.

We had one of our relatives who knows German to read it and it said th letter was a congratulations for a promotion. How do we go about having this looked at to know for sure its authenticity?

Answer 1

Take it to an antiquities dealer who can get a handwriting expert to examine it and authenticate it.

Answer 2

You'll have to have a historical expert look at it.  Maybe take it to a museum and talk to the curator.  Or you could email the Smithsonian and see what they have to say.

Answer 3

Look for stray moustache hairs...