I think that this rifle may have been made by a member the the GROSS family. I own the Alfred Gross rifle mentioned earlier in this post and after looking at it and the pictures of this rifle there are too many similarities to cause me to think other wise.
The entry thimble is of the same construction and is installed with the same method. Look at the pin holding the rear thimble and then the pin for the barrel lug on my rifle and then on this rifle. They are the same.
The location of the trigger guard screws and the shape of the guard are very similar.
The tang is very similar.
The but plate return is similar in length.
Curvature of the butt plate is similar.
The rear sight is similar
The biggest difference is the cheek piece. This could have been a customer specification or just of those days when you want to do something a little different.