Original Item. Only One Available. This is a great original German WWII RZM signal whistle (Trillerpfeifen) with a black knotted lanyard. The whistle is in good shape overall with some minor chipping. 

The whistle's for Officers, NCO’s and individual soldiers were supplied from 1943 to Infantry company commanders, section and group chiefs.  Made of celluloid or Bakelie, it was attached to the third button of the tunic and was kept in the pocket.  It was an indispensable element in the passing of orders during combat in the front line.

The whistle is stamped with the RZM logo next to:

Reichszeugmeisterei
der NSDAP

This may denote that it was a sort of advertising item for the RZM system. The black lanyard is in good shape and is attached via a small metal loop which looks oxidized. 

The SA, "Sturmabteilung" (Storm-troops), were originally formed in August of 1921 as a protective guard unit for the political leaders of the fledgling NSDAP Party. As with the NSDAP, "Nationalsozialistische Deutsche Arbeiterpartei" (National-socialist German Worker’s-party), the SA was structured along para-military lines. Most of its recruits were from the ranks of the various "Freikorps" groups of the day, composed mainly of disgruntled ex-soldiers, and they were first utilized at a NSDAP party meeting in Munich in November of 1921.

The SA pattern box buckle was the first belt buckle to be introduced by the NSDAP, with its estimated introductory dates ranging between 1921 and 1923. On its introduction it was not fully standardized and came in at least five variations. The SA pattern buckle was originally worn by other NSDAP organizations including the SS, the NSKK, the NSBO, and political leaders

Unfortunately, the ambition and socialist leanings of the SA eventually came into conflict with the goals of the rest of the party, and in 1934 the group leadership was purged, and by 1936 the buckle was officially replaced, though many still wore them.