Wehrmacht issue hand operated air raid siren

Unissued Wehrmacht issued hand cranked air raid siren. Standard vehicle item that is extremely scarce to obtain in complete or working condition. This is the first one I’ve ever found in this complete condition. The sirens comes with the original cloth dustcover, the sling AND the belt loop. The belt loop is only the second one I’ve ever seen. The original paint finish on the zink/aluminum based hardware still retains up to 95%. Together with the completeness I’d say it is in unissued condition. The piece is nicely dated 1940 and is maker marked JURK. Incredibly scarce item that would nicely compliment any equipment or vehicle collection!