I am having a hard time identifying the manufacturer on several locomotives I have. Any tips?
Time to break out the magnifying glass. There should be some type of manufacturer’s marking on the underside frame. That’s another reason why I went to HO O was too big and N was too small, especially now that I’m in my middle 50′s.

Time to break out the magnifying glass. There should be some type of manufacturer's marking on the underside frame. That's another reason why I went to HO O was too big and N was too small, especially now that I'm in my middle 50's.
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Model railroader for 40 years