A crazy rare (two copies!) Hansen writing ball using the Moon alphabet, an alternative to Braille.pic.twitter.com/XATQZfRpNv
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Thanks for sharing! These are amazing!
Amazing thread!!! Thanks for sharing. 
That was super-cool! Thanks for all the pictures!
This was awesome, thanks so much. I have a new destination...
Heart-warming. Inspiring. Thank you so much for sharing all this.
BTW this reminds me of the Natural History Museum my wife and I ran into in Tourrette-Levens during our honeymoon. Times 100.
holy tomato sauce. That's too crazy
I uploaded a few more here:https://www.flickr.com/photos/mwichary/albums/72157672442082324 …
thanks for this :)
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