The challenge of maintaining and repairing older or vintage model trains fosters model train enthusiasts' mechanical
https://www.scribd.com/document/726130308/HO-vs-N-Scale-Model-Railroading-Understanding-Scale-Ratios-Track-Gauges-and-Layout-Sizes-187861
The challenge of maintaining and repairing older or vintage model trains fosters model train enthusiasts' mechanical and problem-solving skills