So after all this talking about yixing and whatnot, I decided against my earlier convictions to jump down the rabbit hole… Got me this pot in the attachments.
The pot is supposedly vintage/old but I am not sure how old, so I am hoping for the combined knowledge of the tea cloud!
Volume is 70-80ml ish, unused, so there is a sort of clay smell inside, but not unpleasant. The pot seems shiny on some of the images but it is actually not.
Clay looks to my half-trained eyes like hongni inside out, what kind of hongni is another part of my question? There are small dots visible on the surface, so that would point to an Factory period pot if I am not misstaken… Dr. Lu writes as much on his facebook group. On another old thread I stumbled about Jia Zi Ni, a special black-dotted Pin Zi Ni used during early-80's in Factory-1? Never heard of it before and culd not find other references to it.
Workmanship seems fine to me, lid wiggles a bit, but nothing too loose (

On the firing I am not so sure, walls are not thin, not thick I would say. Lid makes a nice ring but certainly not a high ring! Overall the clingclingclang-sound it makes when handled empty, for lack of better description, feels nice.
Seal is difficult to decipher, me and native speakers I asked could not really read it. Not Zhongguoyixing in any case.
Any hints are appreciated, thanks!