[Aztlan] Piedras Negras Panel 15

[Mark Pitts]

Listeros,
 
I am trying to obtain a good drawing of Piedras Negras Panel 15 for the UPenn Museum's Glyph Workshop.
 
Can anyone provide a copy or point me in the right direction?  
 
Obviously, all credits and copyrights will be respected.
 
Thanks,
Mark Pitts