Thanks to all for your replies. Yes I understand that the grulla was the symbol used by UA, and consequently, UA guns were therefore termed "Grulla" in their day. I think this might add to some of the confusion I'm trying to clear out of my pea brain. As I said, I have much to learn yet, and expect that my limited pocket book, and exposure to all degrees of quality guns will hamper me much. Never the less, is there no difference than in how good were the materials used, and how well built are the UA guns vs the contemporary Grulla offerings? Taken the art work out of the equation that is.