The object is to remove the coin. Less than 5 Coin Boxes were made in 1994. An original design, not a copy of an existing design. It is designed for a U.S. nickel coin (5 cents). Easy to medium difficulty.

Robert Sandfield's IPP 23 exchange puzzle

Seventh in the Karakuri Creation Group's "Creative Secret Box Series" of 2003. Designed by Hiroshi Iwahara & crafted by Tatuo Miyamoto. Box is in excellent, original unused mint condition. Includes original box and solution card.This is a great 12 move box with 2 secret compartments. Inspired by Ninomiya's 4 move Push Up Box but has 8 additional moves and one additional compartment. A very nice box. Three versions of the box were made, all the same except for their slightly different exte...

This was Akio Kamei's Karakuri Christmas Present in 2011I'm selling these puzzles to fund future puzzle-making equipment, and of course to buy morepuzzles :)buyer is responsible for money transfer fees (ie 3.5% for paypal), packing and shipping expenses...

from www.karakuri.gr.jp:This box is my first mechanical piece. However the movements areeasier. To avoid the problem of humidity affecting the moving parts,some of the inside parts have been painted with lacquer.buyer is responsible for money transfer fees (ie 3.5% for paypal), packing and shipping expenses...

Ternary Burr by Eric Fuller. His original posting notes:- This puzzle is a groundbreaking and highly anticipated design. Only 30 copies have ever been made in the past, and Brian at Mr. Puzzle sold them out very quicky. The Ternary burr consists of 22 pieces, with over 90 notches and and grooves. The unique solution requires 75 moves to get the first piece out, and over 90 moves to completely disassemble the puzzle. A very difficult work of art!Here is what the designer, Pit, has to say about it...

Classic puzzle box. No packaging or instructions included.

Open the drawer to discover its contents.No packaging or instructions included.

Bits and Pieces version in great condition.

In good condition. Manufacturer unknown.

Eric Fuller made a run of Buttonhole puzzles a few years back; this is one of them in Ambrosia Maple.

Secret Box 1, 2, 3, and 4. I'm not sure who makes these; there's a label on the back covering up some info, and I'm reluctant to peel it off. Anyway, these look fairly nice; they're made from high-grade plywood that appears to be laser-cut and stained. There's a tiny chip on the edge of the end of box #4. You can get these fairly cheap from a number of sources right now, or you can just buy them here. The mechanisms are fairly interesting, which surprised me, including a gravity-mechanism that d...

Matthew Dawson's IPP 32 exchange puzzle, made by Brian Young of "Mr Puzzle"

A simple puzzle lock attached to the Kremlin.

You will get 5 GelenkpuzzlesYou have to separate the two piecesShipping cost is< 500g world 7.5 $I will combine shipping cost if you have more then one puzzle.You have to pay the paypal fees.

from www.karakuri.gr.jp:This work was designed as a Christmas present for 2009.There are 4 drawers. The direction of the drawers are all different from each other. Only the very bottom drawer isn't locked. When you move the drawers in a special way, you will be able to open the drawers in sequence. The goal is to open all the drawers at the same time. A mechanism called, "prevention of countercurrent" was needed to make this work. The device is fitted only between drawers next to each other. The...

from www.karakuri.gr.jp:Do you know how to solve the "Box with a tree"?If you know how, then that becomes a hint.You can move the 4 plates freely.But, the top plate won't open.There are 4 trees on the top.The direction of the trees are a hint in solving the box.buyer is responsible for money transfer fees (ie 3.5% for paypal), packing and shipping expenses...

Painstakingly handcrafted from the finest materials, the box features some very nice inlay and intersting stepped miter joinery on the edges of the shell box. Custom internal mechanisms were hand milled from solid bar stock aluminum and took several weeks alone to make. Each 51 Pound Puzzle Box is signed and dated by the artist. This box does contain powerfull magnets, and as such should be kept away from mechanical watches, credit cards, sensitive electronic equipment and pacemakers. For obvous...

Although it looks relatively modest on the outside, this is a phenomenally difficult puzzle box to open. It is by far the most difficult box Eric Fuller has produced for the public. T Beginning with simple sliding panel moves, the solvers task is to find the key and use it to disengage the concealed locks which prevent it from opening further. Once again, the simple appearance of this box belies the amount of work poured into its craftsmanship and construction. It is a very, very difficult puzz...

Binary Burr by Eric Fuller. His original comments: The Binary Burr is a classic Bill Cutler design. It was awarded a First Prize at the 2003 IPP Puzzle Design Competition, and has been unavailable for several years. Here is what Bill has to say about it: "The Binary Burr is a burr that functions like a 6-ring version of the Chinese Rings. The puzzle consists of 21 pieces. One is equivalent to the ‘bar’ in a Chinese Rings puzzle, and six others are equivalent to the ‘rings’. The other ...