Size: 37*20*17 mm

Comes with a signed Certificate of Authenticity

 

Here’s a video on YouTube of the event:

https://www.youtube.com/watch?v=f4guQa54iCU

 

And here’s a link to The Meteoritical Society with data of the event:

https://www.lpi.usra.edu/meteor/metbull.php?sea=Chelyabinsk&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal%20table&code=57165