A marriage of a Wedgwood dark blue jasperware bowl atop a brass? There is no Wedgwood mark, presumably lost along with the original base.
However, the top is undoubtedly Wedgwood based on the quality of the jasper and overlay - including the rim frieze which is a Wedgwood design. The item "WEDGWOOD DARK BLUE JASPER BOWL ONTOP OF EMPIRE STYLE METAL STAND (Ref6494)" is in sale since Sunday, December 20, 2020. This item is in the category "Pottery, Porcelain & Glass\Porcelain/China\Wedgwood\Decorative/Ornamental". The seller is "toby0711" and is located in Sidmouth.This item can be shipped worldwide.