You're right Sue, of course. The name 'axehead' was not used by Mdina or the Isle of Wight studio to describe the rounded/angled heavily clear cased vases with thin necks. It was my fault entirely. I co-write the DK Collectables Price Guide with Judith Miller and described a piece using that name in there once. It seems to have stuck. The correct name is 'Fish'. Think manta ray, I guess. Similar rounded examples without casing are 'Lollipops' and the heavy square section faceted one you have, well like so many Mdina shapes, it doesn't really have a name - I have seen them called 'hammer head' as you say. That sandy cylindrical stoppered bottle is highly unusual - seen plenty in green/blue, but never that one. The neck is also slightly longer than usual. Great piece!