Hello everyone,
Thank you very much for your attention and comments.
Thanks to kasle, I began to investigate in that direction and looking at the information available in other forums, I verified that it is a vintage piece, manufactured by Godet.
It is true that it is not one of the pieces awarded, but it is also true that it is contemporary with those delivered.
I also collect collar patches and specialty badges and have never put down a catalog sample because it would have sat in a store unissued and unworn.
Here I show some photos with more detail, and in comparison with a first class and a second class one to appreciate the difference in sizes
Here is another contemporary piece from the period 1939-1945. Delivered to Spain for display at the Army Museum in Madrid. It was never awarded to anyone, but I would give anything to have it in my collection.