Roy
I have seen this pattern but always in clear/colourless never in opaque glass. Our collection includes a cream pitcher with two fish, one large swan and two small swans. A friend has a slightly larger pitcher and a sugar basin like yours. The mould our cream was produced in was nice and sharp but the execution of the glass pressing leaves lots to be desired - raised rough seams, no fire polishing and the glass quality is terrible! There is a reversed number 1 pressed into the interior base of the bowl.
I have always felt English or European.
Sid