Having seen, handled and photographed three of the pieces in question ( the 2 museum pieces and my own piece) I am still of the opinion, all four pieces (Roberta's piece now included) are the same type of decoration.
All four pieces have as a basis, the citron colour with bubbles as shown in photo 1 my bowl and photo 2 museum goblet.
The only difference between my bowl and the other three is the size and colours of the splashes, where my one has orange and yellow were as the other three the splashes of colour are blue and green.
Gary