David Oscarson American Art Deco Sapphire PenThe 15th Anniversary Collection is a celebration of the American Art Deco motif and fifteen years of excellence in design. This commemorative collection is the first to incorporate fifteen sections of Guilloch engraving, each taken from ten of the 21 plus Collection designs over the past fifteen years: Henrik Wigstrom, Winter, Crystal, Harvest, Celestial, Valhalla, Pierrot and Pierrette, Lewis & Clark, the Black Water Dragon and the Black Water Snake.