Ottoman Empire-Janissary Dagger

Have some papers that vaguely give certain incidents,area,timeframe and by checking with actual events,dates,etc the best timeframe falls within one of the many conflicts of Russia and the Turks. A wounded member of the Janissary reportedly gave this to a surgeon who patched him up in the field and since the Janssary were disbanded in 1826 the only other period that fits is the time of the Russo-Turkish conflicts between 1735-1739.I had also checked the events of 1854-1855 regarding the Crimean War (Charge of the Light Brigade),but again since the Janissary disbanded in 1826 it doesn't fit. Would be Happy to hear the thoughts of others and any added information regarding this piece. Did the best I could on these photos,if need clearer contact me and I'll try again.