Antique Tintype & Photograph Sizes
Normally Black Market Antiques does not give exact measurements of antique photographs, as most 100+ year old photos have pretty uniform sizes. This page should help you determine the size of an old photograph if you are not familiar with the different size terminology.
Tintype Photographs: Tintype photograph sizes are refered to the size of the photo in relation to the size of a full plate of tin (roughly 6 1/2 X 8 1/2 inches). So therefore the various plate sizes are as follows, but keep in mind, actual photo sizes may vary because of trimming. Some antique cameras also allowed the photographer to take photos larger than full plate size.
Full Plate: 6.5 X 8.5 inches
1/2 Plate: 4.5 X 5.5 inches
1/4 Plate: 3 1/8 X 4 1/8 inches
1/6 Plate: 2.5 X 3 inches
1/9 Plate: 2 X 2 1/2 inches
1/16 Plate: 1 5/8 X 2 1/8 inches
Gem: 1/2 X 1 inch
Ambrotype Photographs: Roughly same sizes as mentioned above for tintypes.