1925 Parker Pen Duofold Why these 6 Points? British Ad #N1526

This original 8.5 x 11" colorized ad was published in the 1925 British Magazine, Punch, to promote the Parker DUOFOLD fountain pen, mad with Iridium Tips. The ad shows an Oversize Duofold, a Lady Duofold and 6 of it's preferred Nibs.