Information on German pottery vase with bird mark

Hi there
Any help with this piece checked internet and my papers but can't find anything.

I think it’s c.1970s from West Germany. There looks to be pattern numbers under the glaze on the base that are typical of West German production pottery during the ‘fat lava’ period. Unfortunately the numbers are too obscured to read; maybe Scheurich, based on the glaze, but I don’t think their vases in this shape were that tall

https://www.20thcenturyforum.com/t2928-scheurich-keramik

I think they used white clay

I also have some of them and am waiting since years to get them Id'd. The base normally shows a bird and a number.
Here some pics of one of my items (bird unfortunately here not very good to be seen):

https://servimg.com/view/14876841/2204

Probably from Germany and surely not from Scheurich.

Also found another one of them here in the forum:
https://www.20thcenturyforum.com/t25938-which-east-german-pottery-company