I snagged a Type 19 #5 jack earlier this year to convert to a roughing plane. The knob and tote are Rosewood, but were coated in the thickest layer of varnish I'd ever seen. It was all of 1/16 thick in places and full of ugly scuffs and scratches. I was not looking forward to all the sanding it would take to get this stuff off. I happened on an old can of Homer Formby's refinisher on the shelf that hadn't been touched in 20 years and thought I'd give it a go. I poured a half inch deep puddle in a pint yogurt container and dropped the knob and tote inside. With the lid on I gave it a few shakes to get everything coated and let it sit for 15 minutes. Another shake and waiting period later I opened it up and all the old finish had softened and basically turned to snot. It was easy to wipe it off cleanly down to the wood with a terrycloth rag. Once it dried I hit it with a ScotchBrite pad and then a coat of spray on lacquer. It looks great and I'm looking forward to using the process again.