Machinist's Stash

As the name suggests, the Machinist’s Stash is a cylindrical metal puzzle which contains a hiding place that is secured with a labyrinth lock.
Its easy to close it, but opening it requires strict adherence to the algorithm and an error at any stage throws you back to the beginning. 
At the same time, there are no hints how to open the cache on the body of the puzzle itself.   This will be a challenging puzzle for many people!

This attractive and sturdy metal puzzle is produced by Andriy Bruns from the Ukraine and is based a puzzle called Fireplug, which was a design originally created by Marcel Gillen.

Internal size: diameter 28 length 47 mm
Can be used as hiding place
Material: bronze and duralumin.
Size: 92x65x65 mm.