Anniversary badge from a local German Nazi Party organization

http://lod.ehri-project-test.eu/units/us-005578-irn90354-irn11758 an entity of type: Record

The badge was donated to the United States Holocaust Memorial Museum in 1996 by Mark Esterman. 
irn11758 
Anniversary badge from a local German Nazi Party organization 
overall: Height: 1.930 inches (4.902 cm) | Width: 1.930 inches (4.902 cm) 
No restrictions on access 
No restrictions on use 
circular; gold colored (possibly copper alloy); molded/stamped image of Nazi National Insignia flanked by dates"1920/193" above text,"15 Jahre Ortsgruppe/Landshut/die älteste Ortsgruppe/[illegible] Gau bay. Ostmar"; raised floral motif around periphery, broken by image of shield at lower center 

data from the linked data cloud