Some misc. items...what are they?

[Andy B.]

Hi Everyone,
A buddy of mine would like to know what these are, I haven't been able to find any info on them, and was hoping you could help.
First is a very nice Nurnberg door plaque? It is 9.5cm high and 7cm wide (at the middle). It also is maker marked (see second photo).
The enamiling is very nice on this piece and no breaks or cracks.

[Andy B.]

and the maker mark on the reverse.....

[Andy B.]

Second item is another door plaque?...from Nurnberg. This one is marked NSKK at the top (obviously). It is 8cm high and 6cm wide. It appears to be made of brass. No maker mark on this one.

[Andy B.]

The next item is some sort of Luftwaffe disc. Its small and measures at 3cm. Very light and might be made of zinc. First pic is of the front....

[Andy B.]

and the reverse (I guess)....

[Andy B.]

Last is an Olympic pin. I have to admit, I was lazy and didn't really research this piece. I just hoped someone might go ahead and let me know what it is (and what its for) .
Anyway, thanks for looking and I really do appreciate any help!!

Sincerely Andy B.

[Andy B.]

and the reverse....

[Gerdan]

#1 is a plaque from the 5th Police Car Rally to Nürnberg.

Gerdan

[sjl]

The Luft disk with #73 on it is likely a cloakroom check token.

[Andy B.]

Thanks guys, I appreciate the input!!

Andy B.

[sjl]

The last one is a souvenir badge from the 1936 winter games.