Rediscovered glassware bought at auction 20 years ago that resurfaced this week

I believe that this could be Murano but by whom
The recess is white cased the pontil is flat polished and the tan decorative spots have the gold sparkle of adventurine
It stands 90mm high and is 95mm diameter
I think judging by the style this would date to the mid century era as the 1960s are now called