My all-time favorite pen. I think it's a Pelikan M150. : r/fountainpens
Rare Pelikan Fountain Pen M150 Black-Green with M-nib - Export Model for Italy | eBay
Pelikan Classic fountain pen black M150 M200
Pelikan M150 Fountain Pen (Old Style) - Black-Burgundy, Fine GP Nib (Excellent in Box, Works Well) - Peyton Street Pens
Lot of 2 Pelikan M150 fountain pens, Old style, West Germany. Green with black cap, gold plated trims. Size: 4.7" (12 cm). Tin nibs, B. Mint, NOS, never inked.
1980s West W. Germany Classic Pelikan M150 Black Resin EF Extra Fine Flexible Nib Piston Fountain
Rare Pelikan M150 Green & Black Fountain Pen MINT | eBay
9519 Pelikan M150 Fountain Pen and Ball Pen Set in Black and Green. Fine Nib.
Pelikan Tradition M150 Fountain Pen Replacement Nib - Steel Gold Plated - Extra Fine - Walmart.com