Shamshir with tugra or makers mark?

[eftihis]

Hallo Alex,
It is not easy to stamp a blade unless is red hot, so i guess this stamp was made at the time of manufacture. If it was to heat the blade in a latter period only at a specific area, i think it it would lose its temper. This one looks ok and the steel makes a nice clear sound.

I have seen in the past on ebay a seller from Bulgaria selling a tugra stamp!