[RodB]

So, after considerable thought I decided to try mineral spirits for the cleaning and then maybe a furniture oil based rub. The mineral spirits took care of most of the dirt and crud and left a damp look to the rust spots. Looks much better, nice green. Some spots remain and I would say they are emerging rust bubbles under the paint. Very small and hardly noticeable. I'll update when I've wiped on/off the furniture oil.

Rod