Ottoman pistol - need help with script on barrel

[Oliver Pinchot]

This is Ottoman work, probably made in Istanbul; what is visible in the photo is a crescent surrounded by stars, together with a Greek "M" and the date 1221 a.h. (1805/6 c.e.) and the usual dots and curlicues. It was likely made for a Greek patron. The overtly European style also suggests this.