We have a Storage Box with cover from Industrial mill Vintage item. It came from an old mill in RI who made jewelry. It measures about 5 3/4" x about 4 1/4" x about 2 1/2" in H. It is completely rusted with very little metal showing through. The #530 is embedded on the 4 sides of the box with the top having 100 embedded on it. There are also numbers painted on the top in black. There is a vintage metal decorative piece suatered on one of the shorter sides. It is in fair condition with the rust.