This is an antique, EAPG (Early American Pattern Glass), McKee Glass (1860’s) / Boston & Sandwich (1840’s) “Bellflower” goblet. Both companies produced the exact same pattern, therefore I am not sure which company actually produced this goblet.
This piece has a ribbed bowl, with a horizontal ribbon of flowers along the middle of the goblet. The stem is hexagonal, and the mold lines run all the way to the outside edge of the base. It is also ribbed, on the bottom side, and you can feel the circular point where the glass was removed from the mold.
I have eight of these stems for sale, each separately. They are all in excellent condition.
Take a look at the photos, and if you have questions, please e-mail.