This is a really old school way to add things up. It is an adding machine that works with marbles to add numbers using the binary system. It is really geeky but looks really cool when the marbles topple down.
have you seen this New York, NY, United States
I come across things day to day, time to time, that hopefully you will stumble upon and enjoy. Please feel free to send me interesting / fabulous / amazing things you come across. If you see something you like, please stumble / reddit / digg it so others can find it and enjoy it too. ♥