Stamp ID needed

[Alex W.]

Hey everyone,

inside of an award case I found this stamp. Unfortunately it's not easy to read. Can any of you identity this stamp ?
All I can tell is "Bezirk III" "Kreis Linz"

Thanks for your help,
Alex

[fotoshop44]

Above it is N.S.D.A.P. , second word I can not read, third is Gau. Maybe someone from Austria knows the Gau.

[Gerdan]

I read " Bezirk III Kreis Linz"

Gerdan

[Gerdan]

I forgot to add:

the total text I red is " N.S.D.A.P. Hitler Gau (?) Bezirk III Kreis Linz"

Gerdan