Mine was exactly like that made in Spain and was a 1-66. They made both, 1-66 for round balls and 1-48 for conical bullets but 1-48 shoots round balls okay. Just curious about yours, thanks.
I had the same scope given to me with the same problem. The entire outside rubber is tacky. My Bushnell laser range finder has the same problem. It is the mold-release agent that causes it. It is applied to the surface of the rubber so it does not stick to the mold. When the rubber cools it will...
I have done several without the "tool" that you can buy using a Crescent wrench and an open end wrench. You will have tap it with a hammer to loosen at first. Several You Tube videos show this method. Good luck as they are a labor of love for sure.