Heres an interesting site, as it has waffenamt information for all kinds of waffenamt used on all different kinds of german marked items from guns down. maybe this site can help with some questions you may have about a certain waffenamt you desire info on. interesting read if nothing else.
http://claus.espeholt.dk/mediearkiv/waae.pdf
http://claus.espeholt.dk/mediearkiv/waae.pdf