Vintage Boker Tree Brand plastic display case. Black bottom, clear top, and red felt insert.
Looks like it used to hold a stockman knife. The total width is 4 1/2". The insert would hold a knife shaped like what is seen in the pictures and is 3 3/8" long when closed. SEE PICTURES.
Hinges work as they should Locks closed as it should. Felt is in good shape. No cracks in plastic. Some scuffs as it is vintage.