John Berkeley

Barrel and Ball
Barrel and Ball (single)
Cage and Ball
Cannon and Ball
Double Barrel & Ring
Imp Possible Nail
New Persian Puzzle
Skep
The Balls and Chain
The Barrel and Ball
The Churn
The Lighthouse
The New Brass Puzzle Match-box
The New Castle Money Box
The New Money Box
The Sceptre
The Screw-box (modified)
The Wedding Ring Box
Zulu Box