Black Parker 51 fountain pen with steel cap from the 1950s. Appears in good and functional condition. No faults or missing parts to describe. On the side you can see “the danish anchor” (small imprint logo), which is the fountain pen manufacturer and retailer Christian Olsen's company logo (an Anchor and initials C. O.). Fountain pens that were imported to Chr. Olsen's factories were stamped with this logo as well as the company's own products, for example Penol.