Strip of 4 NSDAP assistance (Hilfskasse) stamps for 0.30 RM. 
 
Good for dedicated Hilfskasse Cards (for the holders of Mebership Cards in the first 2 years of the membership) and 1935-edition Membership Books. 
 
It was obsoleted by 3rd generation stamps that included the 0.30 RM already.
 
Avalilable in two versions:
early (before 1936)
late (1936-1939)
 
Late edition of the stamp can come clean, or canceled with round "NSDAP bezahlt" stamp (they would be normaly canceled if in a book, or card).