Jason ist right.
On the "Kriegsgliederung" of 27.10.42 is printed that it is a new headquarters (neu aufgestellt
). Another document, a "Zwischengliederung", however, has several handwritten remarks, with the corresponding order numbers.
On 15.09.42, original general order (3476 g.K.) to use Stab, Artillerie-Regiment z.b.V. (mot) 623 and its Nachrichtenzug in WK XIII to raise AAR 2, to be ready by 15.10.42. This is followed by various orders that apply to the change AR 623 to AAR 2.
Sorry about the confusion - but I do claim the refuge that I have several times stated that the looseleaf folder I use to answer this Afrika stuff is dated, dusty, and at least 20 years old.
That's the advantage of this forum - gets things straightened out. Usually...