Hans Theo Baumann made either these or very similar looking ones in this particular colour for Gral-glas in 1966 (pattern F468).
I'm comparing it to a photograph of the Gral-glas book on page 108. However, the neck in your photograph seems to be slightly longer. That might either point to a different maker like Zwiesel, or to the fact that the pictures are taken from a different angle, making the neck look shorter. No measurements are given, and I can't seem to find the corresponding pattern book sadly.
Astrid