I'm not much of a rust hunter anymore, I figure I'd rather work wood than speng my time re-habing old tools. But sometimes a box of rust calls my name too sweetly to resist. The local Woodcraft had a box of planes a guy had dropped off, he wanted to sell the lot. I made an offer even though the only one of the bunch I wanted was the type 9 #41/2.
BTW, all the planes except the #91/2 were in very good condition and you could tell from how they were sharpened used by a worker that knew how to sharpen.
I'm on the road with just a iPad and not a clue how to post a photo. Will maybe post one later.