The writing instruments mentioned are actually originals, even if they do not correspond to today's high-price expectation. Until into the 1980s, Montblanc produced alongside the Meisterstücks also much mass goods in middle price ranges; only under Norbert Platt was the brand decidedly positioned in the luxury segment. The mentioned pencil 164 is led as an official Meisterstück, in the 1960s and 1970s recognisable by the 'bishop's hat' at the cap ring. The nib named is correctly to be designated as 'butterfly nib' (German Schmetterlingsfeder), not as 'wing nib'; the latter refers to certain models of the 1950s like 252, 254 and 256. Further information can be found in the book 'Collectible Stars' by Stefan Wallrafen.