winteramabzug camo question

[stefanuccio]

hallo all, I am doing reserch on the winteramabzug winter [grey-green/white] reversible camo and i would like to ask the following questions:

Was this winteramabzug parka used by the waffen SS in Kharkov February-March 1943?

When was introduced in service with the SS?

What colour was [a part the white] green or grey?

thanks very much in advance, regards Stefano.