Vintage Montblanc Pens - Montblanc 134 and 136, both made in the 1930/40s. Both feature the telescopic piston mechanism, which allows to load some more ink than usual. The 134 has a "
A MONTBLANC 134, possibly German, 1940s
Montblanc Meisterstuck 134 Fountain Pen, 14C Extra Fine Nib-Excellent condition | eBay
Montblanc 134 meisterstuck fountain pen long window - Catawiki