Thank you Jim for your assistance!

Many Solingen blades ended up in Spanish mountings for the Spanish market and this might be very well one of them. However, it isn't unfathomable that Heinrich Brach accompanied his father to Toledo and worked with him there. Do you know where can I find some information about Johannes Brach and his visit to Toledo?
Struggling to learn the whole history of a blade is interesting and frustrating at the same time as you have only very few pieces of the puzzle and from there you have to guess the whole thing.