Cup with cover

The image shows a gray, ribbed cup with a cover. The cup and cover are made of a shiny material, possibly ceramic or glass. The cup is round with vertical ribs covering the body and horizontal ribs on the lip. A number "629" is written in black on the front of the cup. The cover is domed with a small, round knob on top, also with horizontal ribs. The cover has vertical ribs on the sides. The background is plain white. The image is a black and white photograph.