This is an EAPG (Early American Pattern Glass), McKee / Boston & Sandwich Bellflower pattern relish dish / oval bowl. It was manufactured from around 1840 up through the 1860’s.
This relish dish is in excellent condition, and it is beautiful. It shimmers. I looked at it closely, and it does have a few miniscule flakes around its outside rim. This piece is like the butter dish, it is really rare. I have not been able to find another like it. I took pictures. Please make sure to look at them closely before committing to purchase this item. If you have questions, please e-mail.