Type Fountain pen
Product Name Mephisto-Pneumatic 7800
Manufacturer and Year Hardtmuth Koh-I-Noor, Czech Republic - c. 1930s. We've read that they did not make their own pens.
Filling System Piston-filler. Restored with a new cork seal here at PSP.
Color Black with a barrel that's translucent with black stripes in a spiral pattern. Gold colored cap band and clip.
Nib Fine 14k nib. It's quite springy. Semi-flex.
Condition Excellent condition. No cracks, chips, dents, or dings. The barrel has good translucency, and has light scratching and handwear. The section and end both look nice. The piston knob is a bit stiff, but should loosen up with some use. The cap also looks nice, with light scratching. The clip and cap ring both have light brassing. The imprints are clear.