this 0,34" have the SN 12042
http://www.antique-firearms.de/?id=2&ant=2331&kt=0

old bullet mould for the military cartridge "old model"
http://egun.de/market/item.php?id=5383999

called "Langblei"

while I still looking about for informations about the old style Dreyse shotgun paper cartridges here is another needle fire double gun for such ammo
11 bore Speckhaun Needle Fire shotgun
http://milpas.cc/rifles/ZFiles/Odd%20Fel...%20shotgun..htm