Hi Everyone, While looking for a cruiser for my girlfriend I remembered my mom's had an old huffy sitting in her garage for the last few decades gathering dust. I bartered her some computer help for it and brought it home. It's mostly in good shape aside from rust spots (the sort of rust that happens from being in a spot that occasionally gets humid in the winter months, not out-in-the elements). I'd like to restore it, or at least figure out how to clean the rust without removing the paint and chrome. I'd also like to identify it if possible. It's labelled a Mainliner 3 on the main tube. My guess is it's from the 60s or 70s, certainly older than the 80s and probably newer than the 50s. Can anyone tell me how to find out what year it was made? Where is the serial number located on it? How do I clean it without damaging the original paint and chrome? I tried soap and water and got rid of most of the dirt and grease but it didn't effect the rust much at all.