Delicate blown glass by Francis Whittemore. The Williamsburg decanter has a ringed neck and removable stopper. The neck of the stopper and decanter are ground, a distinctive mark of Whittemore's work.
The perfectly matched pair of glasses are Rhine wine goblets, rimmed with gold. One of the goblets has some loss to the gold, which I have tried to show in the third photo. There are no chips or cracks to the glassware.
Although none of the glassware is signed, both these designs perfectly match those in Whittemore's catalogue, as does the perfection of the work.
Decanter: 9/16 inch (1.4 cm) diameter, 1 1/4 inches (3.2 cm) tall.
Goblets: just under 3/8 inch (0.95 cm) diameter, 13/16 inch (2.0 cm) tall.