{"product_id":"part-built-3-12-inch-gauge-columbia-stock-code-3563","title":"part-built 3 1\/2 inch gauge \"Columbia\"","description":"\u003cp align=\"left\"\u003eAn early stage \"Columbia\", Martin Evans' take on an  American Baldwin-type 4-8-4. Given the size of the prototype machines, it comes  out as a massive piece of kit even in 3 1\/2 inch gauge with 4 1\/2 inch drivers  and 1 5\/8 x 2 inch bore and stroke. Work to date is to a decent standard, the  chassis pushes along freely with all rods fitted, the cylinders are  part-machined. Complete with a set of drawings.\u003c\/p\u003e  \u003cp align=\"left\"\u003eParts and castings available from Blackgates Engineering, the  construction series was written up in \"Model Engineer\", volume  144-146.\u003c\/p\u003e  \u003cp align=\"left\"\u003eLength 43 inches (I estimate the tender would add another 30 inches  when assembled)\u003c\/p\u003e  \u003cp align=\"center\"\u003e\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54019941007701,"sku":"3563","price":250.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/3563-1.webp?v=1779908699","url":"https:\/\/stationroadsteam.com\/products\/part-built-3-12-inch-gauge-columbia-stock-code-3563","provider":"Station Road Steam","version":"1.0","type":"link"}