silver jewelry box

Metal detected another site in southern Delaware that had a home until 1950s. Found using historic aerials and this site was just a few miles away from a site where I found another tiny souvenir spoon within the same forest tract! First I found the small spoon which I believe is silver plated...

Today my finds are these strange items. Both have a pin to hold them together, with tops and bottoms. They look like bracelet cuffs but I haven't a clue what they are or what they may have been used for. The metal appears to be silver, although I could be mistaken as I don't see anything on...