Unable to find matching script for this artifact inscription
turn it upside down:

the middle one is 㞢 (u+37a2), which means “have, exist”
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-mf/search.php?word=㞢
the lower one is 屮 (u+5c6e), which is the original of “草” (grass); in context, it means grass or wood
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-mf/search.php?word=屮
the top one is not yet identified, most likely is a location related character.
have fun :)