In 1996 Boucheron collaborated with Waterman Paris to produce the limited edition, "Edson signe Boucheron". The nib was made of 18K solid gold with the body of the pen being of a blue translucent Resin. The retail price was €2000 / $2700 / £1700 and limited to only 3471 pieces (this number is the sum of the years of foundation of Waterman, 1883, and Boucheron, 1858). The pen remains one of the most sought after pieces within the fine writing category.