Old-school tool: screwdriver

This old flathead screwdriver has the words "PATENT APLD FOR" on it. The flathead, or slotted tip screwdriver has been around for a very long time. According to Mahalo, the screwdriver was invented in the late Middle Ages, and was the only mechanical device not from China. About.com says the flat-bladed tip for the carpenter's brace was invented in 1744, and handheld screwdrivers didn't appear until after 1800. We're not really sure what year this particular screwdriver is from, but something must have been an innovation for a patent-- perhaps the handle? Check out our gallery for more close-ups of the tool, and let us know in the comments if you have any history on this.

Source