1. 

   SteamDonkey74 TrainBoard Supporter

   7,160

   171

   90

   I chanced upon this one this morning...
   
   [video=youtube_share;Z0br89U8K-U]http://youtu.be/Z0br89U8K-U[/video]
   
   
   Fascinating.

    

   SteamDonkey74, May 19, 2012

   #1

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