Kim decided we needed to go for a car ride through the woods. We ended up at the Drake’s well Museum outside Titusville, Pa… and discovered we’d left the camera at home. But hopefully these cell phone pix are good enough to work from. This machine was invented in 1945, and would be perfect for any oil or mining region.
more info
http://www.petroleumhistory.org/OilHistory/pages/Portable/yo-yo.html
I have enough projects for the moment, but if you can use one on your pike, don’t let me stop YOU.