it a scaled down Mauser 71 action, see no indication it was made by dreyse. could be( with old guns all is possible) but I would say someone in Suhl or the near by Zella Mehlis made it. It was very, very common that this guns were delivered without a name and the lokal gunmaker added his own name to the rifle before it was sold. if you dont find a hidden name when disassemble the rifle it will be a mistery for ever who make it.