This is a Sheaffer Snorkel Valiant in Mandarin Orange c. 1957-1959. Mandarin Orange was one of the new Snorkel colors introduced in 1957 and pens of this color do not have matching color sections, but black, as shown. The Valiant has a Triumph two-tone palladium plated 14 karat gold nib, a plastic cap and barrel, a gold-filled clip and a 3/8" wide gold-filled cap band. Note that this pen has a barrel imprint. Colors produced were black, burgundy, pastel gray, pastel blue (or aqua), pastel green, peacock blue, buckskin tan, mandarin orange, fiesta red, and sage green. The 5 1/2 inch long Snorkel Valiant has a medium nib and sold for $19.75 and the matching pencil, $7.25.