Hi,
I am wondering how old this unusual goblet might be and what sort of glass it's made of. It's very thick glass with random bubbles and I think it might be just a bit of end of day glass although as it's been engraved with a ship someone has taken more time over it. The pontil is smooth and slightly dimpled.
Size is 4.5" tall & 3.5" dia of rim. Weight is 450g
Thanks