Butterfly Lock by Wil Strijbos, also known as “Pleasure & Pain”For sale is my Butterfly Lock by Wil Strijbos, also known as “Pleasure & Pain”.A beautiful and highly distinctive mechanical puzzle, the Butterfly Lock is well known among collectors for its unusual design, clever mechanism and challenging solve. It is a substantial piece made from aluminum and steel, weighing approximately 1.5 kg.CONDITIONThe puzzle is in VERY GOOD CONDITION and has been SOLVED ONLY ONCE by me.As is normal f...

Popplock T14 by Rainer Popp – EXCELLENT CONDITIONFor sale is my Popplock T14 by Rainer Popp, an exceptional and highly collectible mechanical puzzle lock.The T14 is a beautifully engineered sequential puzzle that requires a series of precise moves to unlock. Made from brass and stainless steel, it has a substantial weight of approximately 1.7 kg and feels extremely solid and premium in the hand.CONDITIONThe puzzle is in VERY GOOD CONDITION and has been SOLVED ONLY ONCE by me.As is normal for a...