Any better ?
Those are not really common. I`ve only seen those stamps for alox knives with the old triangular awl, so the first alox ever produced. (Image removed from quote.)
Here`s a picture from a catalog.(Image removed from quote.)Those on the right are exactly the models I`ve shown in my picture above. In the right corner of this catalog page you`ll see the marking 1958. That could be right, it has to be before the 1961 alox soldier came out. Those old models exist also with an elinox stamp. Sometimes, they changed the blades so its quite difficult to say if those are always the original blades and markings.