Reply to "Help ! What’s this ????"

TrainBubOGR Forum Member

Thanks to all for the replies / guidance. The trains were not in a damp basement but in a large bedroom with AC, heat, double pane windows, uv protection and displayed on glass shelves. Nothing environmentally harmful.
Only the MTH Hiawatha front wheels suffer the weird malady out of dozens of engines. There must be some impurity unique to this run of wheels.
It is now my last engine to pack for a move. I will clean off the “crud” before wrapping and boxing the engine but wait until after the move to wipe down with a light oil.
Again - thanks for the comments / valuable guidance. 👍

TrainBub 🙂

12/5/198:40 PM

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