Found in an old barn, a massive 1 inch drive Snap-On model L-73. From a little snooping around it looks to be the early release model from 1942 to 1948. The bad news is the threads that the handle screw into are just about gone, aside from that it works great. 8 inches long and almost 6 pounds! A new "high score" for my Snap-On collection. A casual look on eBay says I didn't pay to much for this at $10. Now to find the handle and sockets that go with it.