Celadon crackle glaze small pot

This isn't 20th C I don't think but it could be, and is in my collection and I know a lot of people on here are extremely knowledgeable about such things.
Very pale duck-egg blue glaze.
Stands 6cm tall, 8cm wide at the mouth and 4cm at the base. Very rough stoneware I think. Can anyone shed any light?

We always need to see the base. even if unmarked.

With what looks like an unglazed rim, I would suggest it may be missing a lid.

Here's the base and another view of the inside. Yes, the rim is unglazed so it could well have had a lid, that makes sense.

I know very little about Oriental ceramics but it looks like a piece of late 17th Century or 1700 earthenware English Delft to me. Maybe a cup or a salt type thing. Got something fairly similar out of the Thames a long time ago.
But Naomi is rarely wrong so maybe not Delft....

Is there a partial impressed mark at around the 7 o'clock position? Looks to be letters inside a semi-circle.

Possibly but I think it's just a chip in the base - I've given it a very gentle clean and nothing obvious there

Are we talking about the same place? I've taken the liberty of editing your picture to show what I'm looking at.

Can you take photos in better light i.e. outside?

The shape looks oriental but it was copied in Europe and without a better image of the glaze it is impossible to have an educated guess.

It's possible - I've taken another picture and can perhaps see a G but I may be inventing it...