Both models were made between 1959 and 1968. The Meisterstück 12 is the smaller Meisterstück fountain pen with piston filler and so-called butterfly nib; the No. 38 a ballpoint (not a rollerball) of the third line below the Meisterstück range. In black standard colour both models are relatively frequently preserved and accordingly not particularly valuable; collector prices reach especially deviating colour versions.