In response to your request regarding Dreyse Karabiner M/57 bolt parts. Please can you photograph your bolt disassembled so that we can correctly assess what precisely is missing. There are a couple parts that we can get made and the others not possible. We do not know of anyone who has M/57 spares or can make the other parts. You could try advertising in Germany. As Gunboard cannot reproduce our scale line drawings of the bolt due to too high a pixel rating, please be patient. This Saturday we shall photograph the component parts of our bolt and post the attachment of a disassembled bolt to illustrate what we can manufacture. We might be able to supply a needle.
For the Mle. 1866 Chassepot shooter possibly can also supply the correct rubber obturator. But this has to be investigated.
Guy and Leonard A-R-West