Hi alannit good advice...
The aerodrome is a good site and I am already a member; but, its primary focus is WWI aerial combat and WWI aviation matters; I do ping there for advice and thoughts.
I did not know about the second link:
http://forum.germandaggers.com/index.php so I did check it out.
It is a military site and they do have a very small section on Imperial German uniforms and other items; but, the site is really catering to the WWII buff.
At least that is what my gut told me after a couple of minutes of flipping through the topics.
The Iron Crosses that I saw in abundance were from the Third Reich; they seem very collectible but just not my cup o' tea.