dog tag "SS-NACHR.ABT. 10868." ???

[3CCC]

hi

got this dog tag "SS-NACHR.ABT. 10868.", what does it mean?
what unit is it?
is it original

thank you and greetings
3ccc

<p><img src="http://cdn01.trixum.de/upload2/C/F/CFES7QvhqObU135212027088P1216.jpg"></p><p><img src="http://cdn01.trixum.de/upload2/J/6/J6deXgpBcbV0135212026714P1216.jpg"></p>

[christof]

Unit is SS-Nachrichten-Abteilung (SS-Signal Bataillon) but I have never see Tag of this unit with the round pattern of runes....

[Battlerelic]

The round runes, fuzzy edges of some of the letters and different (?) diameters in top and bottom "H"s puzzled me also.