I just got a used Stanley #7 plane from eBay, these planes are also known as jointer planes. With their long base, they can make a very straight edge in wood, or flatten a large piece of wood. In my case, I’ll be using it to flatten my work bench top. From my research, this is a Type 15 plane, made in either 1931 or 1932. Buying a used plane I think saved me some money. The newer Stanley planes aren’t rated high on Amazon, and have plastic handles. Some say they take a lot of work to flatten and get everything right, as Stanley isn’t producing a quality product any more. Apparently the older ones were better, so I decided to go that way. There are other very nice planes you can get from Lie Nielsen or a Veritas from Lee Valley Tools. The prices for those higher end planes are a lot more.
Both wooden handles seem in great shape. I’d say there was some rust that someone cleaned off. There were a couple areas on the bottom where a tiny lump of metal was protruding, and would scratch whatever I was smoothing. The blade had lots of small dings in it, and seemed to be sharpened at a very shallow angle.