Case is 3" x 2.5". Opens and closes well. Some corner chips. Don't know for sure if the image is a daguerreotype, tintype or ambrotype. The image does not look like a holograph when you tip it so I would guess a tintype. Buyer should use their own judgment. The size of the tintype should be 2" x 2.5" which is the area under the metal frame. 522.4-8