btw, its also new for me a pistol exactly build like the double guns here
Rare F. Dreyse Needle Fire Double Barrel Pistol
Estimate: $1500 - 2500
Rifled barrels with a dovetail blade front sight and a single leaf rear in the smooth rib dovetail. Floral engraving / silver wire inlay on the action, under lever and trigger guard with a warrior holding a spear and shield. Double triggers, ornate pistol grip with blued steel cap, on the one piece extra fancy English walnut stock.
BBL: 8 1/4 octagon Gauge: 47 Finish: blue Grips: walnut Serial Number: 147
Condition: Fine as period refurbished with 98% blue on all the metal. Some pitting on the right side of the barrels. Light handling marks on the period revarnished stock with very fine detail on the raised relief carving. Mechanically fine.

http://www.icollector.com/Rare-F-Dreyse-Needle-Fire-Double-Barrel-Pistol_i10495025