Perpetual Calendar

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Mopy_ZA

AVForums Veteran
Joined
Feb 28, 2020
Messages
372
Reaction score
35
Location
Eastern Front
Hi all,

Found a very cool DIY project that the kids (and adults) might enjoy - A perpetual abaccus style calendar.

Perpetual-Calendar-Made-in-seattle.jpg


Perpetual-calendar-abacus.jpg


Perpetual-Calendar-Maplewood.jpg
 
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