This cake plate has been identified as Pairpoint based on the quality of the glass and the style of the controlled bubble in the stem.
Pairpoint bubbles are uniform in size and appear to be placed in an upward spiral pattern. There are other manufacturers known for controlled bubble pieces. Erickson, creates much smaller bubbles in their pieces and the bubble section is usually larger than the one shown on this cake plate.Tiffin and Morgantown also did controlled bubble pieces.
