William L Hunter Blueprints from 1929
William L Hunter blueprints from 1928. A woodworking extraordinaire. (Credit imgur)
Square Block wooden Burr puzzle.
The 45 Degree Block puzzle: AKA the Mini Lumberjack.
Notsoezy Puzzle - a clever disentanglement puzzle - similar to orbits or the Baguenaudier
A cylindrical Burr puzzle - like the constructus.