There are chips as you can see in the pictures. I do not know if it's porcelain or metal. It looks like it can be cleaned up.
It is in all original condition. The Coke button is in Huntington WV. The item "Vintage 36 Inch Coca Cola Button" is in sale since Sunday, April 03, 2016. This item is in the category "Collectibles\Advertising\Soda\Coca-Cola\Signs".
The seller is "dp34994" and is located in Stuart, Florida. 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, ID, 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, UA, AE, QA, KW, BH, HR, MY, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.