Measuring the length of the horn as part of the classification of the trophy.
Trophies are graded into 4 classes: Ungraded (below 185 points) Bronze (185-195) Silver (195-205) and Gold (over 205). Points are basically the width across the widest point, the length of the horn, plus its circumference in 3 places (measured in centimeters). Left and right are averaged. Added together that is your total. The prices are wildly different, with Bronze being 1500 Euros, silver 2000, and gold nearly 3000.