from the packaging:"Arrange nine of the ten mahogany shapes to form a perfect 4x4x4 hollow cube that totally encloses the small black cube... "the packaging references a leaflet which I cannot find... sorry...Buyer is responsible for shipping and paypal fees

Small six-piece wood burr from around 1930 (may be earlier or later).Size = approx. 2" pieces in a 2" x 3" boxInstructions inside the box lid tell you to arrange the Mikado as shown on the box lid.I have not put this together, so I do not know the fit.Payment: Payment can be made by Paypal or by check in U.S. dollars, or by Paypal in euro, or by euro through direct transfer of funds into my German bank account at the equivalent of US $1 = 0,80 euro.Important Shipping Note: I will be preparing fo...

Small six-piece wood burr from around 1950 (may be earlier). Each of the 6 pieces is a different color. No. P19 in a series that included Jane's Puzzle, Rosie's Puzzle, and Irene's Puzzle, all of which are illustrated on sides of the box.Size = approx. 2" pieces in a 2" x 2" boxSolution sheet enclosed.Payment: Payment can be made by Paypal or by check in U.S. dollars, or by Paypal in euro, or by euro through direct transfer of funds into my German bank account at the equivalent of US $1 = 0,80 e...

With 48 pieces of 7 different shapes, the basic goal is to build 3 different cubes (3X3, 4X4, 5X5) with the 3 different wood colours sets. Then build a 6x6 cube with all pieces. Other challenges are proposed on instructions sheet. Great looking puzzle. Solutions included. Buyer pays the 4% Paypal.

Separate the six (brass and plastic) rods. Charles Perry is a renowned architect and sculptor, with a handful of puzzle designs to his credit.Buyer is responsible for shipping and paypal fees

This puzzle of 6 pieces assembles to make a nice icosahedron.Includes stand. Note the chips on the two corners (one small, one slightly bigger), which does not affect the functionality of the puzzle...Buyer is responsible for shipping and paypal fees

This is a two laying puzzle. You have to put the 7 pieces back into the package.

On the front and on the back there are numbers. You have to put the pieces in such place that each row and column has the same sum. Also in the main diagonals. IPP exchange puzzle

Unhappy Childhood is Stewart Coffin's design #41. Ten checkered pieces, each made of five cubic blocks joined different ways, pack into a 5x5x2 square box. This is one of the first puzzles that I made in the early 1990s.

Kevin Holmes' exchange puzzle for IPP25 in Helsinki...Arrange the ten shapes that spell the letters/numbers IPP 25 SUOMIto form a 4x4x4 cube. Rated difficult, this puzzle has a unique solution...Buyer is responsible for shipping and paypal fees

Double-Bar Cube, designed by Tom Jolly, manufactured by Bernhard Schweitzer, exchange puzzle for IPP 2008. Made from "3 hardwoods". Nice fit, no defects. 6 identical pieces, not as easy as it appears, but not terribly difficult either.

Split Ribs Cube, designed by Marc Van Kreveld, manufactured by Bernhard Schweitzer. No defects but for the original roughness of the wood used. Eight pieces, not interlocking (it falls apart if you pick it up).

This is a 25 piece puzzle, I believe designed by Jon Constantin, each piece consisting of 4 wooden cubies with a brass rod sticking out of the side. All the pieces are identical, and pack into the cubic open-topped box. It's a Bits and Pieces copy of Constantin's puzzle, and comes with some poorly made instructions and the original box.

This edge-matching puzzle is a premium from a company called DSM Gist. From The Netherlands. Date unknown, but within the last decade or so. 7 hexagonal cardboard pieces, each with 6 images on them, form a 6-piece circle with the 7th piece in the middle; all the edges have to match.Size = approx. 3" x 3" Payment: Payment can be made by Paypal or by check in U.S. dollars, or by Paypal in euro, or by euro through direct transfer of funds into my German bank account at the equivalent of US $1 = 0,8...

Place the 12 pieces in the correct locations so the shape of the holes (circle, cross, and square) match. Size = approx. 4.5" x 6.5" Payment: Payment can be made by Paypal or by check in U.S. dollars, or by Paypal in euro, or by euro through direct transfer of funds into my German bank account at the equivalent of US $1 = 0,80 euro.Important Shipping Note: I will be preparing for and attending the Essen Spieletage (German game fair) immediately after the auction ends. I can bring your items won ...

You have to put the black piece also inside the tray. Was my exchange puzzle in Prague.

There are 8 square cards and 1 start and 1 goal cards. The 8 square cards have pictures on the front and on the back side.You have to arrange the cards in such way that there is a way from start to goal. If you have make your path it should be also possible to pick up the 4 keys which are on the path. The puzzle is from 1995

Was the exchange puzzle by Theo Geerinck at the IPP 25 in Helsinki

Very challenging burr... 40 moves to remove the first piece...Buyer is responsible for shipping and paypal fees

here's Stewart Coffin's challenge of this puzzle:An interesting puzzle is suggested by joining 1 x 2 x 2 blocks in pairs all possible ways. The resulting 10 pieces are shown in Fig. 60. They can be assembled into a 4 x 4 x 5 solid, and there are said to be 25 solutions. Now eliminate the two pieces that are themselves rectangular, and see if the remaining eight (shaded) will assemble into a 4 x 4 x 4 cube. After you have become convinced that they will not, find a set that will by duplicati...