I just got beat out on this one on ebay.  

 It appears to have a copper or bronze blade and pommel spike.  (You have to scroll down on the ebay page to see more photos) I don't know much about this type of dagger.  Is this blade material common?  

  In my limited google research I did not see other Tebu daggers with this type of blade.
The scabbard is very nice. 
 http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
 
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT