This 1930 Aurora Duplex Large lever-fill in Jade with Black ends is one of the rare models, with a floral filigree design on the repousse clip, and three cap bands . The “Duplex” was Aurora’s first celluloid pen. A “Duofold” look-a-like, made in the very early years of Aurora, when their design was highly influenced by US pens. In 1927 Aurora introduced the “Duplex” in Red Hard Rubber with black ends. In 1929 the celluloid Duplex was introduced in five versions and five colors. Medium, flexible nib. Slightest tinge of ambering, otherwise near mint+.