Belleek Mythical Dolphin and Shell Centerpiece 2nd period black mark.1891-1926

An 8 inch Belleek model D137 centerpiece shown in the 1904 catalog. I don't normally collect Belleek but this piece " knocked me out " at the local antique store at a trivial price and is in mint condition. I can't find a recent price but at a Sotheby's sale in 2002 one fetched 767 U K pounds.
I don't know if it is still made , info appreciated. Hope you like it.