Description:
Gray flat rectangular box with hinged lid, most likely shop-built. Once fully opened, it displays four rows of 10 metallic chips per row, fixed to the box itself. Other chips are movable and stored in a specially made rack. The loose chips have a two letter coding written on the felt, related to the Inter Society Color Council system. On the side of the box, and on the rack, handwritten, it says: "set 7-B."