These cufflinks make the perfect gift for the writer with flourish • The Pen Nibs used in these cufflinks were produced by Esterbrook for fountain pens in the 1940's and 1950's • Where "ink meets paper" you'll find the nib - often made of stainless steel and tipped with an iridium pellet • Esterbrook produced reasonably priced, colorful fountain pens that enjoyed enormous popularity in the 1940's and 1950's •Their nibs were dependable and easily interchangeable • Today, nibs can still be found on high end collectible fountain pens • Each pair comes with an authenticity certificate • 1" l x 1/8" w