You can see it in a photo of the underside of the chassis, but if you want a close-up pic message me. The item "Zenith 15 tube chassis only 15-U-270" is in sale since Friday, November 27, 2015. This item is in the category "Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1930-49".
The seller is "radio1657" and is located in Worthington, Minnesota. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, to Taiwan, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, AE, QA, KW, BH, HR.