Stuv 419.92

This is a visual decode system that works in a similar way to Chubb Lips. The process is to first of all identify the lever groupings  for each position, they will be either 1,2,3 or 4,5,6,
Then use the decoding keys to set each lever so that it can be visually decoded.
Once the code is obtained, assemble the make up key and open the lock.
Worst case scenario should be 3 possible keys.