Sealed purple and green vase

Hello

I bought this sealed vase on a belgian flea market a couple of years back. Its 23cm its got a nice weight to it but is hollow. It has a scratched kind of hashtag mark on the base.
The guy I bought it from had bought it as part of a group and had been told it was german but he didn't think it was and I don't think so either. Any help on date, country or maker would be great.

Thank you so much :)

only a guess but the shape and clay colour suggests that it's Belgian

Thank you dantheman that's really helpful :)

That looks like a similar mark to my (as yet) unidentified jug to me. But the piece looks entirely different!
https://www.20thcenturyforum.com/t24284-rustic-studio-jug-coiled-with-ambiguous-mark-lh-ch-hf

where did you buy yours Carol?

It was part of a mixed lot at an auction the Chichester. I think most of the rest was British. There were 4 pieces of Crich (which is why I bought the lot) and an Alan Foxley vase. I just remembered there was a Scandinavian plate, too.