"This puzzle is milled from solid stock, and there is no mistaking it for a cheap mass produced item. Weighing in at a hefty 12 ounces, the craftsmanship is evident when you see the slight tooling marks. The keys are milled from solid stainless steel; a very tricky material to work with. The base and sliders are milled to precision from solid corian.As a puzzle I found it quite enjoyable to solve. There is only one solution to remove both keys. Putting them back in is even more of a trick, since...

7 pieces pack into a triangular box with slanted sides consisting of 3 symmetrical blocks Parallelopiped shaped, 3 non-symmetrical blocks Polyhedron shaped and one small pyramid (not visible in the assembled puzzle)

This is a large hollow maze, a copy of the one shown in Mathematical Games, Scientific American 1988, a design by Oskar Van Deventer. The goal of the puzzle is to move the center of the cursor to each of the 8 corners, this is possible for all but 1 corner. Only one model of this version made.

The Sears Tower was a souvenir puzzle for IPP23 Chicago, 2003. 13 wood pieces.

This burr is newly made from left over parts, recently lacquered, waxed and buffed. GigaBurr was a souvenir for IPP19. For more details see attached instructions.

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

A souvenir of IPP21. A three piece level 6 burr. This burr is newly made from left over parts, recently lacquered, waxed and buffed. See attached sheet for details.

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

A level 6 three piece burr made of Walnut, Cherry and Wenge. This burr is newly made from left over parts, recently lacquered, waxed and buffed. For more details see instruction sheet.

Puzzle made of Bloodwood, Bocote? and a light unknown wood.

A simple puzzle lock attached to the Kremlin.

Rotating outer and centre discs as well as coloured cylinders. No instructions but it's fairly obvious you have to align the colours.

A nice puzzle that challenges you to exchange the position of the coloured discs.

Get all three pieces into the box.

See US Patent US 552721

All three puzzles - the original and two variations by Eric Fuller, all made by Eric from various woods.

A 419-move box by Kim Klobucher

In excellent condition. comes with 40 problems and instructionshipping cost < 1kg is 12 us dollar

Entanglement, tray puzzle by Tom Jolly, laser cut by Walt Hoppe.

Tucker's Teaser, designed by Richard Tucker, "analysis by Rik van Grol" as it says on the solution sheet. Apparently 3 solutions. Not sure who manufactured it, though there is a "made in Britain" sticker on the packing. Quality is well below Pentangle quality. This one was listed in "A Compendium of Cube-Assembly Puzzles using Polycube Shapes" by Kevin Holmes and Rik van Grol, Aug 2002, and designed around 1980 (according to the PuzzleWillBePlayed site).