Hi there, and thank you for that.
I can see there is a resemblance with the sharp edges, and the chunkiness of it. I see nothing on the bottom of mine, but will have a re-look at it from different light sources to see IF anything shows up, but has worn off (?). That is more information than I had before, so Thank you very much.
Kinda a small planter....that why I thought it (might) be a funky shape for a desk/paperweight to hold something like paper clips in it...but I am just guessing