Conklin
Crescent Filler
Fountain Pen
Filling System
Crescent Filler
Condition
Good vintage condition with typical signs of age, minor discoloration, and wear to hard rubber
Estimated Value
$150 - $300
Era
Vintage 1910s-1920s
Pen Specifications
Pen Type
Fountain Pen
Filling System
Crescent Filler
Body Material
Hard Rubber (Chased)
Trim Material
Gold-Plated
Color / Pattern
Black and Olive Ripple / Mottled Hard Rubber
Cap Type
Screw Cap
Clip Design
Conklin spring-loaded clip with crescent logo
Barrel Shape
Cylindrical with slightly rounded ends
Nib Details
Nib Material
14K Gold
Nib Size
Fine
Nib Type
Flex
Nib Condition
Good with visible flexing capability, tines aligned, minor surface wear
Dimensions
Size / Dimensions
Approximately 5.2 inches capped
Weight Estimate
Lightweight, around 15-20 grams
Heritage & Origin
Era / Period
Vintage 1910s-1920s
Country of Origin
USA
Rarity
Uncommon
Condition & Value
Overall Condition
Good vintage condition with typical signs of age, minor discoloration, and wear to hard rubber
Filling System Condition
Requires new sac replacement to be fully operational
Estimated Value
$150 - $300
Special Features
Patented Crescent Filler mechanism invented by Roy Conklin
Ink Recommendations
Standard vintage-safe water-based fountain pen inks, avoid permanent or heavily saturated inks
Care Recommendations
Keep away from direct sunlight and heat to prevent hard rubber discoloration; flush periodically with water
Interesting Facts
Mark Twain was a famous spokesperson for Conklin pens, heavily praising the crescent filling mechanism for preventing pens from rolling off desks.
Overall Assessment
A classic early 20th-century writing instrument that represents a major milestone in self-filling fountain pen history.