Parker 51 Custom Aerometric in Midnight BlueThe Parker 51 is often described as 'the best pen ever made', it was often copied but never equalled. This is an outstanding example, it is a Custom pen featuring a rolled Gold cap, and has a Midnight Blue finish with a good, deep shine. The colour is most attractive, it was only used on the American made pens. It is a very deep blue, a shade lighter than the Cedar Blue colour used on the earlier Vacumatic pens. Midnight Blue is not a common colour.