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wristwatchtoscano 1920s version of GPS!
wristwatchtoscano 2 1920s version of GPS!

In response to our post on the 1930s car-based mechanical mapping device, MAKE reader Simon posted a link to this earlier, wrist-borne scroll-map navigator, from the 20s!

Here’s a bit more background on it.

Plus Four Wristlet Route Indicator: Original GPS

1930s answer to GPS

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor for Boing Boing and WINK Books. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

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