Well folks, I have seen A LOT of these H domers but never one like this! This piece's dome has the standard raised circle H embossing on the dome dead center but then has a recessed shallow outer circle the size of a quarter surrounding the inner circle and H, whatever caused this was in the mould or was done to the dome of the mould to cause this recession and there are no mould lines coming to the recessed circle either. Insulator is lt aqua, has a lot of tiny champagne bubblies and is VVNM condition. I don't think there are very many of these pieces so add it to your beehive lineup! $19 PP in USA.