sold by Hermann Historica
combination gun, right barrel full rifled, missing the ramrod
this was for the old Schlußspiegel cartridge without rim and having of course no extractor hooks

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a double gun serial number 3375, stell barrels and 14,5mm caliber what could be the 0,59" Randschlußspiegel cartridge

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17mm so probably 0,70" Randschlußspiegel double gun with later blued damscus stell barrels

http://www.hermann-historica-archiv.de/

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this 16 ga "Dreyse" could be one of the late break action guns made before 1895 if realy a Dreyse

http://www.liveauctionworld.com/Engraved...otgun_i15312663

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for whatever reason Bonhams had this pic of a 2004 auction online

with this description" A Prussian Dreyse Patent 40-Bore Breech-Loading Needle-Fire Rifle
By F. Dreyse, Sömmerda, No. 1263, Circa 1880"
think it dont mean the double gun in the middle but the unknown bolt action below now the second rifle of this type I have found. a 40 bore must be something around a 10mm caliber.
the double gun in the middle could be one of the few chambered for center fire cartridges because it have no hooks and a standing rear sight

http://www.bonhams.com/auctions/11257/lot/175/

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serial number 12181 in 0,70" found its way to russia
http://forum.guns.ru/forummessage/1/280940.html

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16 ga double gun and combination gun
serial number 23978 in 16 ga with the Rotationsstück for the right barrel
http://www.euroarms.net/Photo_SS_Dreyse/pages/DREYSE%20SS%20CAL16_51.htm

http://www.euroarms.net/Photo_SS_Dreyse/pages/DREYSE%20SS%20CAL16_51.htm