Amazon.com : Mont Blanc 145-Meisterstuck Classique Gold Fountain Pen, Medium Nib (106514) : Office Products
Bonhams : MONTBLANC: Pair of Masterpiece No. 142 Green Striped Fountain Pens, c.1950s
Vintage Montblanc Pens - Montblanc 142 - 144 and 146 of the 1950s. They all feature the brass piston mechanism, which is much nicer than todays version. Nibs are OBB (146), B (
Vintage Montblanc 142 G Fountain Pen with its Leather Case - Catawiki