Games & Puzzles: Inclined Plane Puzzle, Ball Puzzle

Empty transparent plastic box with offset-printed label

Blue plastic box with offset-printed label containing magnet and metal objects

Plastic box with offset-printed label, cont. plastic, styrofoam, paper objects

Plastic box with offset-printed label, containing objects of various materials

Plastic box, offset-printed label, clear 16mm film leader

Red plastic box with offset-printed label, containing altered electrical plugs

Plastic box with offset-printed label, containing metal gauge

Plastic box with offset-printed label containing various organic materials

Wooden box containing printed matter, photographs, and assorted objects

White plastic box with offset-printed label containing magnet and metal objects

Plastic box with offset-printed labels, glass vials of liquids

Wooden box containing offset-printed label, instruction card, and plastic ball