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.