This
enticing box shows Gulliver trying to cross every bridge in Paris once only.
Made by Wattilaux around 1880.
The box contains a beautiful map of Paris mounted on a wooden board with a nail at both ends of every bridge.
There is also a smaller box containing the solution hidden inside an envelope and a cord with a small ring on the end for the would be Gullivers to mark their route.
Spoiler alert:- Click/Tap the image above to see the actual solution.