I picked this up in an antique shop when I was a kid, maybe 15 years ago. I guess I lost the stylus along the way.
Here’s the clear bar pulled:
Instructions:
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I had one of these decades ago, wish I still had it. Brilliant little gadget.
Troncets are such adorable minimalist devices. Like an abacus you don’t have to think about. The sort of thing that could have existed a thousand years ago, but wasn’t developed until after the comptometer.
That’s dope
