Help identify this item is.

[Dmitry]

Originally Posted by freebooter

Many countries from the general regions have dragons in their non Christian cultures....one example is that the Turkish loosely clasify their dragons as giant serpents usually without wings and sometimes without legs too....this does loosely resemble this...

No question. Two prime examples of the dragons on Islamic blades are the Furusiyya Foundation yatagan ca.1500, and the equally superb example in the Met, from the same workshop and time frame.
In this case though, I am more comfortable with the decorations on the blade not being Turkish, but Greek or Balkan. A necessary disclaimer - Islamic weapons [or Greek for that matter] are not my area of expertise.