Help for a feldpostnumber

[POLICE]

Hi all,

I need help about a feldpost number
The number is 11568E

Thanks for your answers

Best regards

[Ian Jewison]

FP Nr. 11568

(15.9.1940-31.1.1941) Kolonne Korps-Nachrichten-Abteilung 451,
(25.1.1943-31.7.1943) Cancelled (Stalingrad),
(1.8.1943-23.3.1944) 21.2.1944 Stab u. 1.-4. Kompanie Sicherungs-Bataillon 521,
(7.11.1944-Kriegsende) 20.3.1945 cancelled.

The E denotes a sub unit....the only one that this could be applicable to is:

Sicherungs-Bataillon 521

E = 4 Kompanie.

/Ian