About design #187, Stewart says:
"The three puzzles in this category all have a 5×5 square two-sided tray. On the back side is a simple framed square for practice exercises. The front side has a Plexiglas cover with openings cut in it through which the puzzle pieces are inserted. Of these three, The Decoy (#187-A) is by far the most difficult and my favorite. It is the only one that requires a slightly loose tray or rounding of corners to solve."

I've constructed this with a solid Sapele body, shouldered on the corners for strength. The acrylic top is precision cut on the laser and the bottom is a solid floating spalted wormy holly panel chosen for contrast against the dark ebony. The fit is precise, with rounded corners to enable the very tricky rotational solution.

42 total copies made for sale, each signed and dated. Ships assembled.