629 frame paint

I assume the number is a typo. The 629 Burlington has a  red frame. The 628 Northern Pacific has a yellow frame (and B&O 626).

Any 'generic' yellow will be close.  A medium shade and gloss will work. From a rattle can will work well if you have the frame striped down to bare metal. A Testors or similar brand medium yellow will be very close match in a spray can. Model railroad colors will dry flat, so you don't want to use them. Needs to be Enamel, not water based paint.

Thank you Chuck, Yes it is 628.

ok I will strip the frame down and prepare it.