I have a new loco for my layout . “On30 Modern 4-4-0 American outside frame loco (DCC) .. c. 1920’s. I was thinking about weathering it and realized that it needed lettering and Numbering before even starting the weathering. That got me to thinking about the number on the cab.

There was a discussion on the Model Railroader forum on this – Locomotive numbering

So .. I am going to use that as a guide. I’ll do that in a Page to keep it easier to find than a page like this.