Below you will find the solution to the Da Vinci's Marvel Puzzle Box
You can use the key with page 51. And then set the sliders to the numbers 15 16 10 12. Then open the final compartment to place a present inside.
You can now use the key with page 51. And then set the sliders to the numbers 15 16 10 12. To then open the final compartment.
You can use the key to set the sliders to the numbers 15 16 10 12. Then put the final compartment back on and push the sliders back in.
Now the puzzle box can be solved again by other players.