Filters
Multlock (blue) - Bill Darrah

Interlocking

Designer: Bill Darrah
Maker: Bill Darrah

Turbine Cube - Bill Darrah

Interlocking / Wood

Designer: Bill Darrah
Maker: Interlocking Puzzles

One in a Trillion - Bill Darrah

Put-together

Designer: Bill Darrah
Maker: Steve Strickland (Puzzlecraft)

Prague Parquet - Bill Darrah

Interlocking

Designer: Bill Darrah
Maker: Lee Krasnow

Shifty Maze - Bill Darrah

Maze / Acrylic

Designer: Bill Darrah
Maker: Precision Plastics

Shades of Donuts - Bill Darrah

Pattern / Plastic

Designer: Bill Darrah
Maker: U.C. Import

Dicey Box - Bill Darrah

Assembly / Wood

Designer: Bill Darrah
Maker: Mr Puzzle (Brian Young)

Golf Line Puzzle - Bill Darrah

Pattern / Paperboard

Designer: Bill Darrah
Maker: Binary Arts

Sticky Stack or Sticks - Bill Darrah

Interlocking / Wood

Designer: Bill Darrah
Maker: Josef Pelikan

Tribute to Prague Spring - Bill Darrah

Assembly / Wood

Designer: Bill Darrah
Maker: Pelikan Puzzles

Interlocking / Wood

Designer: Bill Darrah
Maker: George Syriaque

Interlocking / Wood

Designer: Bill Darrah
Maker: George Syriaque

Coordinate Motion

Designer: Bill Darrah
Maker: Pelikan Puzzles

Coordinate Motion

Designer: Bill Darrah
Maker: Pelikan Puzzles

Coordinate Motion

Designer: Bill Darrah
Maker: Pelikan Puzzles

Interlocking / Wood

Designer: Bill Darrah
Maker: Bernhard Schweitzer

Interlocking / Wood

Designer: Bill Darrah
Maker: George Syriaque

Interlocking / Wood

Designer: Bill Darrah
Maker: George Syriaque