This is an antique tan leather box / case with the initials J.R.B. embossed and silvered on the lid.
There are little sections and segments on the inner lid so I'm assuming this case was made for something specific but I have no idea what for.
Inside are a bunch of various vintage tailor's collar bones or tabs? Some of which are named Martus.
No maker's name on the case itself.
Please see photographs provided for more details and visual confirmation of condition for yourself.
Normal signs of age and use wear including some surface scuffs etc.
The right hand edge of the inner hinge has split.
It measures approx. 3 and 3/4 inches x 2 and 3/4 inches x 1 and 1/2 inches.