T12 is one of the many impressive and difficult lock puzzles by Rainer Popp.It was released in 2020Dimensions: 7 x 10 x 3.8 cmMaterial: Brass/Stainless SteelWeight: 2000 gT12 has 10 steps to open, according to the manual.This copy is from the 1st owner, he polished it very well some time ago, it developed limited patina since then.It comes in its original packaging, with the original manual/solution in its original envelope.- - - - - - - - - - Please note:I am currently auctioning 30 (mostly) m...

T13 is one of the many impressive and difficult lock puzzles by Rainer Popp.It was released in 2021Dimensions: 14 x 9 x 4 cmMaterial: Brass/Stainless SteelWeight: 2000 gT13 has 13 steps to open, according to the manual.This copy is from the 1st owner, he polished it very well some time ago, it developed limited patina since then.It comes in its original packaging, with the original manual/solution in its original envelope.- - - - - - - - - - Please note:I am currently auctioning 30 (mostly) met...