Hello Marc,
you are correct, it's junk, feel free to send it to me, I will dispose of it prfessionally for you!
Seriously, it's a very nice daab from the second half of the 19th century. More Laos than Northern Thailand. Keep in mind that the borders today have been different in the 19th/18th & 17th century.
It's a very nice daab, like said, feel free to send it to me.
Best regards,
Detlef