@pjgeorge – Wow, Peter, what a great resource there. Some of those tools are in “The Woodworker – The Charles Hayward Years”, which I’m still trying to get through. I’ve got to bookmark your link. Thanks!!
@profbwnsv – John, I made myself a Sellers “poor man’s router” before I broke down and bought a real router plane. It’s almost impossible to set the chisel straight into the block of wood on the Sellers plane so that you get a flat bottom on your dado. Didn’t work for me at all.