THE KARST PHENOMENON; A nice wooden puzzle with a lot of metal pins sliding around inside. Designed by Karst Nauta, made by Brian Young of Mr Puzzle Australia. Object is to "separate the two halves" of the puzzle. Comes with original data card and instructions.

Don't know the actual name of this. It's nicely made with dovetail sliding panels at both ends and has hidden magnetic pins. Once the end panel is off, the dollar bill can come out. About 8x4x0.75", solid woods.

Not sure what the actual name is; the puzzle has a sliding wooden "ring" that comes off if you discover the hidden mechanism (magnets are involved). I bought this in Essen, Germany, from Mr. Constantin. It's a little worn, but works just fine.

Three Bar Puzzle, Bits and Pieces 07-6072. Three interesecting shafts you manipulate until you get it apart, then put it back together. I think two of the shafts are aluminum, and the third is either plastic or painted wood. The veneer on the cube is chipped along one edge. Instructions and original box included.

A sliding block puzzle; you try to line up the pieces so that each column is a total of 21 and all the same suit. Not hard to solve, but an unusual design for a slider.

You have to order the numbers. Shipping cost is < 500g europe 4.50 $ world 9 $I will combine shipping cost if you have more then one puzzle.You have to pay the paypal fees.

This little rarity came from Lockheed-Martin Missiles and Space division, and is a plastic folding puzzle with some cloth or fiberglass tape as backing, holding the pieces together. Double sided, with the same picture on both sides. Nice condition. No packaging.

I solved this puzzle once, but it is in excellent condition. Includes original packaging and solution. I will combine shipping.

This is a small puzzle suitable for enclosing cash gifts (inner compartment is too small for most gift cards). Includes original package and solution.

This is a 3-piece interlocking puzzle. Not particularly difficult. Includes original packaging and solution.

This is the Sardines packing puzzle; no box, complete, with solution (which used to be on the back of the box, but was removed at some point and is now inside, as you can see in the photo. The front label is worn pretty badly.

This is one of the CalmPlex line of polycube puzzles, witha result shape of a cone. It isn't TOO difficult, and is nicely made.buyer is responsible for all shipping expenses and money transfer fees if applicable

This is one of the CalmPlex line of polycube puzzles, witha result shape of a cylinder. It is moderately difficult, and is nicely made.buyer is responsible for all shipping expenses and money transfer fees if applicable

This puzzle is still in the box, though the box is a little rough around the edges. The plastic maze-puzzle is perfect. This is one of those puzzles where you put a $20 bill inside, give it to a friend as a gift, and let them try to open it, rolling a marble around so that it finally hits the trip-release. Interesting opening mechanism.

Four marbles that you have to roll into little indents in the wood, though other grooves in the base interfere with this effort (took me about 2 minutes); nothing too unique here, except that it's old. No name on it, just says "Made in Japan" on the back of the box. Estimate maybe around 1950 for the age. Top cover is plastic, not glass. Overall condition of the puzzle is very good.

"Link Puzzle" Picked this up in England about 10 years ago; consists of a bunch of double-balls hinged together with little plastic frames. The cube (4x4x4) flops out into a big loop which you have to fold back together into a cube. Not super difficult. It also doubles as a toy, since you can obviously fold it into other shapes and snap the pieces apart. Includes the original instruction sheet for returning it to a cube shape. Made in China, and I don't know who the manufacturer was, except th...

Suitcase puzzle, complete. This is a little plastic suitcase with a bunch of plastic clothes you pack into a plastic suitcase. The box in comes in is in fair condition, with a few creases. The plastic suitcase and "clothing" pieces are in excellent condition, but there's nothing else in the cardboard box (no instructions or other packing).

Wooden "Dice Puzzle". Consists of 9 straight sticks with dots on the sides. In original plastic wrap, object is to put the 9 sticks together so that the dice-pips add up to seven on opposite sides, as it is with a normal die. There's a little paper insert that says, "The Wood Shop" Rock-A-Nore Road, Hastings. Plastic wrap is brittle; puzzle is, I estimate, 20-30 years old.

These three plastic puzzles (two are duplicates with different coloring) were from a series of 12 dexterity puzzles made by Pussy in Germany. One of the three has a picture of all 12 puzzles on the back of the puzzle, numbers 2501-2506 and 2224,26,27,29,30 and 2232. Judging by the gaps in the numbering, there may have been more. Anyway, this is only 2 of them (with 1 duplicate), numbers 2227 (2) "Point" and 2505 "Corner". Clear plastic on top is a bit scratched up, hard to see in the photo. The...

Only 2 pieces, or 1 piece in a cage. Two-Piece Oddity was the original name, renamed by Philos as the Cross Cage. This is the Philos version in the original package with instructions. Not a terribly difficult puzzle, satisfying to solve, interesting to see, and one that can be handed to beginners without fear that they will take vengeance on you at a later date. Takes 12 or 13 moves to get the center piece out. During design, I was trying to maximize the number of moves for a 2-piece puzzle of ...