左手匕首是為了與西洋劍搭配使用而特別發展出來的兵器，在歐洲有專門的「劍術學校」(Fencing Schools) 傳授這套兵器專用的特殊劍術。左手匕首不僅能抵抗來自各個方向的強力攻擊，亦不會彎折或斷裂，同時兼具輕巧與完美平衡。

這把左手匕首的劍身可能來自德國知名的刀劍鑄造重鎮－索林根 (Solingen)，護手邊緣有反摺的部分，再搭配長型十字護手，可以有效撥擋對手的攻擊，是這類兵器常見的細部設計。劍柄上精美的雕刻及部分鍍金處理，讓這件兵器在實用之餘，也值得仔細欣賞。

In Europe, specific fighting techniques were developed and taught in specialized institutions, “fencing schools”. The left hand dagger was developed specifically for use with the rapier. It had to be resistant to heavy blows from all directions without bending or breaking, but still be light and well-balanced.

The blade of the dagger was probably made in Solingen (Germany), a famous center for quality blade making up till today. The left hand dagger is characterized by long cross-guard, “quillon”, used to divert the opponent's blows. The guard has functional turned edge to catch the point of the opponent's sword or dagger. The hilt is beautifully chiselled and partially gilded “parcel gilt”. In addition, the entire body of the blade is long and slender, making the weapon not only in terms of its practical application, but also for its artistic qualities.