Beckman 635566 Instrument Selector Switch New This item was purchased from a large business inventory reduction sale. I do not know the history of it. The box has some shelf wear, but this panel is new. The label also reads, "Old maximo # 6018-0015-200" and the front of the panel is marked, "Stream". It measures about 4" wide by about 6 5/8" tall. I am not able to test it. It only comes with what is shown in the pictures. I have more than one of these and so the one you receive may not exactly match the pictures, but it will be new in the box. S547-3 d