I sort of have a thing for these, I guess its the gizmoscity, they do seem to accumulate. The top one is the Yankee-North Bros. I found 2 weeks ago, and overpaid for, but darnit I like the thing. Good wood parts and a perfect chuck. It is a model No.445, only missing the bits in the hollow handle. Next down is the Millers Falls I found at Walnut, Iowa. Dirty, but really only needing some lube, and the chuck is perfect. Model 77A, white metal frame, but its a good one. Bottom is a Goodell & Pratt, forget the number, but works great. Someone did some digging, what came first the eggbeater, or the eggbeater drill? The eggbeater has an earlier patent!