A slim, fully gold-plated fountain pen with a guilloché surface and a 585 gold nib is as a rule a Montblanc Noblesse of the first series. The line was made roughly between 1978 and the mid-1980s and was positioned below the Meisterstück as an elegant everyday pen. It is filled with standard cartridges or a converter; a piston filling system it does not have. Mistaking it for a ballpoint is easy enough, since the Noblesse models are built very slim and the cap finishes flush with the body.
The boutique price latterly stood, according to collectors, at the equivalent of around 138 euros. On the second-hand market the Noblesse was changing hands for between roughly 50 and 140 euros in 2012, depending on condition. What matters most for value is how well the gold plating has survived, since it wears through over the years at the cap lip, the clip and the grip area, and putting that right is scarcely economic. Technically the pens are straightforward; after a thorough cleaning of the feed and with a fresh cartridge they can usually be put back into use without further ado.