I bought it as parts and it was never finished or ran. There is a chassis/frame (steel) with brass wheels. From wheel to wheel inside the rails is 3.50 (can be seen in pic). There are (2) brass motors. Looks like the holes line up to mount to the chassis, but again this is how i received this and I know very little about it. Motors may need some finish work before running. There is a left and right. The dollar is not included and is just pictured for size reference. Please see pics and ask questions! This is a 3-1/2 inch gauge engine called TICH a design by author and engineer LBSC -pen name his book on the engine in still available. I know nothing about this, but just thought I’d pass the info along. The item “Live steam locomotive engines chassis incomplete kit brass train rail hit miss” is in sale since Friday, September 11, 2015. This item is in the category “Toys & Hobbies\Model Railroads & Trains\Rare Scales\Locomotives”. The seller is “mikesamericanhistory7″ and is located in Schwenksville, Pennsylvania. 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.