I know what you mean Ivo
Nachtmann’s production seems to vary, good information on them though thanks. I never realised they made so many products for other companies, amazing that Goebel would take Nachtmann glass figures and etch their names on them (but maybe not knowing that market)
One Nachtmann range I like has gadrooned decoration and is often gourd shaped, very heavy good crystal and simple shapes, I don’t think they do it anymore?
Here is a vase (not the best picture)

Thanks
Adam P