Aaa-h, somebody agrees with me!
My feelings exactly!
First, the style of the inlay: this is a typical Turkish Ottoman technique with gold wire hammered into incised design and protruding above the surface. The earliest examples are from the 17th century.The intactness of the inlay is astounding: no way it could have been made in the 14th century: only museum exponates survive that well, but the older swords were put to use.
Second, the ornament of flags and halberds is very European , at the earliest 17th, more likely 18-19th century.
The figure of sitting Mary with baby Jesus in her lap is very Western: first, it has uncovered hair that was unacceptable to the Eastern Orthodox Church and, second, the Cherub above her head is also Western: head with two wings. The "all-seeing eye in a triangle" in the uppermost cartouche looks suspiciouly as a Masonic symbol that came into popular use in the second half of the 18th century.
The blade also looks Turkish, typical early Kilic 17-18th century.
The handle looks Persian (iron crossguard and 90 deg. pommel) but it could have been remounted. Remounted and broken handle and perfectly intact blade???
My overall assessment: this is a very nice and valuable sword made in Turkey, likely Istanbul in the 18th century at the earliest under significant Western influence. It resembles mightily the series of similar swords shown in the Astvatsaturyan's book "Turkish Weapons" and bearing Greek, Latin, Slavic or Arabic inscriptions. Probably, there was a fashion of the times.
As to the attribution of this sword to Leon V.... Not every "Indiana Jones" knife was actually owned by Harrison Ford
