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D6b? Trying to lookup sieral number


New Member
Apr 18, 2024
I'm looking at an old what I belive is a d6b. I belive 1960 or 61. Electric start. The stamp on the back frame says 37a1117 I belive the 37a means narrow gauge. But I am trying to find out what year for sure. Everything seems complete which is nice. Rails are garbage and sprockets are too. But anyway I'm wondering if anyone can confirm what year or help point me in the right direction.