There's plenty of bump and paint men on here. I had the exact cabinet mid 70s if I remember correctly. I would use 3M Rubbing Compound.The bottle's purple and there's a #1 on it. Maybe these guys can tell me what I have, but it works great on painted metal and porcelain. Electric buffer if you know how to use one.

Great cabinet by the way. Lot's of memories from my dad's station Good Luck