Pen #20 is a 1921 Waterman in a beautiful Red Ripple. It’s a #7 lever-filler with a “Pink” color-coded nib and matching band at the top of the cap. Waterman produced 10 nib “colors” for the #7 pen: red, green, purple, pink, blue, yellow, brown, grey, black, and white (an example of the “white” has yet to be found). Each “color” corresponded to the style of the nib. The “Pink” is usually “fine/triple-flexible” with the highest flexibility of all the nibs, and is very popular these days. Color coded nibs were used by Waterman in other pens such as the #5, Ink-Vue, #32, 92, 94, and others. The #7 is the largest and combined with its flexibility is what makes this nib so desirable and coveted by collectors and users alike: a holy grail of pendom!