Planes Practical techniques Tool Makers

The Boxing Tournament!

Have you got a moving fillister, boxed moulder, or another plane with more insanely complex boxing than this?! How did craftsmen even manage to do this? Seriously, if you know the procedure please do let me know, or point me to a link.
In the meantime, I announce the start of the Hackney Tools ‘Boxing Tournament’. Got a better one? Send me a pic.