Given Chuck's findings, I'd insure it for about $1000-1200 if it's all original and in excellent shape. Probably conservative, but I asked my insurance guy and he's also a gun guy. And be sure you have all the data to describe it and a good pic squirreled away someplace fireproof.
Is the straight grip original, or can you tell? All the "Silver Hawks," (so called, I think because of the "coin finished" receivers) have open pistol grips and miniature beavertails. And if you get an A. Zoli with nice wood, it's because the factory made a mistake. Wood quality seemed to be an afterthought in Italy in those days, or for the gentry only perhaps. I've had five field grade Zolis over the years and all had very plain wood. But you could say the same for low-end Berettas of that vintage and most Spanish guns, too.
And the quality of the engraving on the field grade guns varied wildly from "cartoon" to pretty well executed. I had a pair of 20 guage "Silver Hawk" 20s back a few recessions ago, a 26" IC/M and a 28" M/F. Made in the same year. The engraving difference between the two was mind boggling, although the same pattern was followed "to the squiggle." 26" was expert; 28" was "beginner"! (Or maybe a "grappa fume special"?).
