Marco, your English is better than my Italian.
..in fact, it's also better than my English
Anyway.. In danger of sounding like someones grandma. Selling it without notifying about the marks not being 'genuine' for a Luger, may be noted down in Santas black book..
Personally, I like Lugers that looks like the one above. But in my eyes the grips lower the value a little instead of increasing it.
Hope your other Luger is not permanently inanimated.