Need help with an erkennungsmarke (Dog-tag)

[Admiraal]

Hey guys, i need some help with a erkennungsmarke i bought resently.
It was pretty cheap (6,50 Euro) so i took a chance although i don't even know which unit it is.

This is on it: 11/ G.R. TH. K. 1
And the personal soldier number is 201

To me that is 11. kompanie from Grenadier Regiment "TH. K."
Does anyone know what the "TH. K." means?

Oh yea, it has a metal chain instead of the normal strings, a friend told me that that is for Motorized units.

[Admiraal]

A picture of it:

[Admiraal]

Does no one know anything about the EKM

[Admiraal]

Someone on an EKM forum just posted saying that its from Infanterie-Division Theodor Körner.
Formed on 4 April 1945 from Wehrmacht cadre and 7500 RAD personal.
11 Kompanie from Grenadier Regiments Theodor Körner 1 to be precise.
http://www.lexikon-der-wehrmacht.de/...odorKorner.htm

That would be very nice since i collect late war stuff!
Can anyone confirm this? is it original?