Just ended.
http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA%3AIT&rd=1
My guess that it is a nice, but not extraordinary, Persian Qajar
(NOT 16th century!!!) sword, Ottoman type, plain steel, no doubt signed by Assadullah

The scabbard lost its leather and, likely, both throat and drag.
Was it worth that much?