Jim,
 As a matter of fact, I never noticed that the Flyssa's pommel  looks just like Karabela's!
 If this is not a chancy fluke, then it is  an argument in favour of Turkish, rather than Iranian, origin of Karabela's  "eagle's head" pommel.
 Indeed, rather than Iraqi Karbala, we may revisit  a place neas Izmir, called Karabel.
 We tried to stay away from the Black Sea Yataghan mine field  ( Laz Bicagi), and I can hear a collective groan. But then (just bear with me, I am just a piano player!), there is a rather marked similarity in the "ricasso" part of the blade between Flyssa and BSY. Also, if we take a Flyssa and bend it along the long axis, we end up with a..... And I am not talking about a similarity between the tangs....
Once again, I am raiding Artzi's site 
  
 
http://www.oriental-arms.com/item.php?id=1143
                          vs.
http://www.oriental-arms.com/item.php?id=1003
BSY is like a bad habit: always comes back!