I have done just a little research on this very interesting antique item and have not seen any other photo cases from this period in oval shape. I've seen this shape in smaller pieces but not photo cases.
This case has a lovely and elaborate floral design front and back. It is a rich dark brown/black color. The interior has a tintype picture of a woman in a wedding dress. It is missing the glass over the picture.
Size: Approximately 3 inches high.
Item measures approx. 3"h. .
There are no chips to the corners
When case is closed it measures 3" long, 2 5/8" wide and 3/4" thick.