I believe this round copper dabba (worker's lunch or meal box) is Egyptian or Persian. It's 6 inches high by 7-1/2 inches diameter. The hinged box has a primitive style hinged clasp at the front and a bail handle at the top. The interior is lined in zinc. There's a little verdigris in some of the embossed crevices. Unfortunately the camera flashed enhanced the light spots to be much more noticeable than they really are.
Round Copper Dabba Lunch Box