Chamber Measurements 2 1/2 3 1/2 4 3/8 5 1/2 7 3/4 Star Brass 5 Chime       The whistle was recently used on the NKP 765. The operation is flawless. The valve seals completely and opens correctly. Marked: Star Brass Mfg. Co - Boston Mass. -  USA       This whistle came out of Washington state, and is in the original paint. I personally believe it is from a Southern Pacific locomotive, most likely bought from a different railroad. Since I can't be 100% sure on the origin, I'm selling as a Star Brass Locomotive Whistle. As you might know, the Chinese closely based there locomotive whistles from these, but rest assured this is the real thing.   1850.00 w/Free Shipping
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