Aha. Did some research. What was called a jig saw back in the 1950's and 1960's is now called a scroll saw. What was called a sabre saw back then has been combined with what used to be called a scroll saw and is now called a jig saw. Clear as MUD. When i cut out puzzles in the 1960's, I used a bench top jig saw. When I use the same machine now, it has magically transfigured into a scroll saw, even though it says "jig saw" on the side. What I used to cut plywood props for the school play in the 1960's was a saber saw even came in a box labeled saber saw, but is now a jig saw. Kind of ironic and stupid.