This is a lovely Swedish Art Pottery Bowl by Upsala Ekesy - probably designed by Mari Simmulson.
It is a nice heavy stoneware piece with an incised herringbone pattern incised around the rim.
The diameter is 8 inches in diameter.
There are maker's marks on the base, as photographed.
UK Postage will be with Royal Mail Recorded and applied to your order at the checkout. This will cost £4.95.