The 1927 Plus Four Wristlet Route Indicator's tiny interchangeable paper maps seem quaint compared with their modern counterparts

And this one was made in Britain.

The device is thought to be the first navigation device for motorists, without being built into the car itself.

Worn like a wrist-watch, it is loaded with a tiny paper road map that is rolled across the face by adjusting two small black knobs.
It comes with set route maps, such as London to Bournemouth and London to Edinburgh, and the driver winds the knobs to move the map on as their car travels further.

Only people mentioned by @IceKates in this post can reply

At night all cats are black. Prowling around to bring you interesting items! Use Discernment At All Times! Blessings to you!

In response Ice Kates to her Publication

The World is changing and I'm on the Transition Team! Trump Won and even better God Wins ~ Once In A Lifetime

In response Silver Cat to his Publication

There must be something very powerful about the wrist :)
Thanks for the link and often I wish I had a map. Instead I've learned if I think I should go right I'd better go left.

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