Junkerwerk (Carl Linder) company was founded in 1887 in the knife and blade city Solingen  and was initially able to make its name as a manufacturer of knives and blades. 

The 1911 Solingen directory mentions that the Carl Linder company had moved to Hauptstr. Nr. 45. In those days Carl Linder was one of the many manufacturers of pocket knives. His products even as early as 1911 were mainly hunting knives.

I guess that this knife dates between 1910 and the WW1

Junker Werk Soligen Stag Lockback Knife that measures 21,5 cm closed having a 9,5 cm folding master spear-point blade and a secondary folding spare-point blade. Master blade marked at the ricasso Junkerwerk, Soligen Master blade also back stamped with a logo.

Unlocking of the master blade is provided by pressing the secondary blade in the closed folded position.

Accessory provided is a corkscrew that folds onto the back of the knife.

Steel bolsters which show no dings. Brass pins steel liners,  good looking  stag handles that show no chips or cracks. Carbon steel blades appears full with overall staining/pitting (can be cleaned up), powerful back spring, no wobble in the locked open position

Knife is being sold As-Is condition