Both pens belong to the Classic series, which Montblanc ran as its everyday range in the 1970s and 1980s. The ballpoint with only one ring comes from the entry-level line and carries the number 380, later 13280. It was built from 1971 to 1986 and in 1985 cost the equivalent of a good 15 euros.

The fountain pen with two rings belonged to the better-appointed version of the same series and has a 14-carat gold nib. As a piston filler it ran under the number 221 from 1971 to 1988 and in 1988 cost the equivalent of around 40 euros. From 1988 it was continued as a cartridge pen with a piston converter under the number 13121 and built until 1991; by the end its price stood at just under 100 euros.

The engraving “W.-GERMANY” on the centre ring confirms a date before 1990; an individual identification number was not yet usual in those years, so its absence is nothing to worry about. Both models are modestly valued by collectors, but as working pens they have a reputation for being exceptionally tough and still make good everyday companions.