This men's vintage James Dixon (Sheffield, England) sandwich box is single hinged & has a side ring. It opens & closes securely & has some light scratches & marks consistent w age & use. There is a small ding in the center of the lid, presumably created by the brad which secured the opening to its original leather case. This inconsequential blemish can be seen in the photo of the lid.
The dimensions are 6 1/8" x 4 3/8" x 1 3/8".