This is a built up dummy engine comprising the crankcase P/N 21000 and Qty 9 cylinders P/N 20200.
In case you don't know, the Wright J-5 was one of the most successful engines of the pre-war era. Among the long list of aircraft equipped with the J-5 we find the early Ford Trimotors, the Lockheed Vega, the Vought UO-3 and 4, the Boeing Model 72 and many others. The most famous of them is the Ryan "Spirit of St. Louis", in which Charles Lindbergh made his epic transatlantic flight. Also, modified versions of this engine (produced under license) were used in AFVs like the M-3 Stuart and the M-4 Sherman.
Color information is given by generic names, but the manufacturer recommends Floquil and Pactra brands.
Photo show a completed example painted.
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