This sword is attributed to the Mamluk Sultan El-Adel Tumanbay and is dated 1501 AD. The sword is of "kilij" type and is in the Museum of Islamic Art in Cairo, although I have never actually seen it. the picture comes from Esin Atil's "Renaissance of Islam: Art of the Mamluks".
Atil describes the crosspiece as being made of gilt silver. Judging by the appearence of the hilt I have a suspicion that it may be an Ottoman replacement, although Atil makes no mention of this.
The reason for my suspicion being that this hilt is quite different to the 15th century Mamluk hilts depicted in Yucel's book.
The links below illustrate what I'm wittering on about
:
http://i4.photobucket.com/albums/y11.../ISAS_54_1.jpg
http://i4.photobucket.com/albums/y11...AS/ISAS_59.jpg
http://i4.photobucket.com/albums/y11...d-15th_C_1.jpg