FOUNTAIN PEN Dunn Oversize Fountain Pen (1921-7) -- BHR, Red Casein Pump Handle, Flexible Fine Dunn-Pen #6 Nib (Excellent, Restored) $450.00 Type Pump filling fountain pen Product Name Oversize standard-style Dunn-Pen model. Manufacturer and Year Dunn-Pen, USA, 1921-7, these are the years the company was active but the casein red pump handle indicates this is a later... Add to Cart