A single cup, with black underglaze and a yellowish base glaze (much more than in the picture)
All these finds are in my opinion, common day objects with a rougher, less refined workmanship, which explains their low price to me, although I think they are genuinely old.
Any comments are highly appreciated!
Looks like a simplified version of the lingzhi pattern. 20th century in my view.
Thanks as well for this reply.