The Service Entry Badge was a commemorative medal of Der Stahlhelm, Bund der Frontsoldaten (English: The Steel helmet, League of front-line Soldiers) established on 13 November 1933 by Franz Seldte.

The badge was awarded to recognize Der Stahlhelm service "during the harsh years of struggle" (1918–1933).

The Service Entry Badge displayed a German helmet above a year number, indicating the bearer's year of joining, c. 1862.

The lowest (and most respected) number was "1918," the year of the founding of Der Stahlhelm.

A sleeve chevron was also available for members of Der Stahlhelm who joined the Sturmabteilung (SA).