This restoration is on a 1900s patented door mortiser made by A.W. Miller Mfg. Co.. You can view the original patent here: https://patents.google.com/patent/US779955. I obtained this tool knowing it was missing several parts that needed to be remade. Luckily, the missing parts were mostly easy to reproduce, except for the missing hand-wheel. For this, I decided to have all the hand-wheels re-cast in bronze by Windy Hill Foundry. The full process of that re-casting can be seen here: https://www.youtube.com/watch?v=qHczjyWYcIU. Big thank you to him as well! The original finish for this tool was japanning, but I actually ran out of the ingredients to make a new batch, so I had to resort to repainting it. I made a new handle out of jatoba and brass. I was able to salvage the original cutter, but I wish I could find the other cutters, which apparently came with this tool originally. As specialized as this tool is, it does perform very well and make quick work of cutting a slot into some test pieces of wood. Definitely faster, easier, and more accurate than chiseling it out by hand. This tool has an amazing look to it, so I might end up selling or giving this tool away. Wrenches and screwdrivers are now for sale at www.handtoolrescue.com Help secure more tools for future videos (if you want): https://www.patreon.com/handtoolrescue Instagram: https://www.instagram.com/handtoolrescue Facebook Group - Share your restorations https://www.facebook.com/groups/handtoolrescue https://www.facebook.com/handtoolrescue/ Reddit - Share your restorations https://www.reddit.com/r/HandToolRescue/ Podcast (with Jimmy DiResta and Andrew Alexander) - https://anchor.fm/fitzall