The box is in one piece but as you can see it has been repaired with tape. These dark brown smudges are slightly raised (like spilled soup burned onto a stove top). I do not know what made them, nor if they can be scoured or polished away. Other than this area under the boiler, the base is very clean.
The item "Wilesco D 20 Working Steam Engine Dampfmaschine 1970s original box" is in sale since Saturday, November 19, 2016. This item is in the category "Toys & Hobbies\Models & Kits\Tools, Supplies & Engines". The seller is "arrowbooks" and is located in Branford, Connecticut. 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.