Yes, I wrote that it was hollow in the body.
Ive updated my profile...Im from Australia, but I dont often find that helps, as there are so many migrants here, we have glass from everywhere. And it was in my husbands grandmothers house, they were part Irish, part Aboriginal, part English..so..the fish could have come from anywhere. But she lived in Australia for her 80 odd years next to Italians, Greeks, you name it, so it could also have been a gift.
Maybe sometimes its good when noone can identify the glass..at least it doesnt make it a run of the mill everyday piece