Conklin
Crescent Filler
Fountain Pen

Filling System
Crescent Filler
Condition
Good vintage condition with age-appropriate wear and discoloration (fading to jade/greenish tint on ends)
Estimated Value
$250 - $400
Era
Vintage 1910s-1920s
Pen Specifications
Pen Type
Fountain Pen
Filling System
Crescent Filler
Body Material
Hard Rubber / Chased and Mottled Rubber with Overlay
Trim Material
Gold-Plated
Color / Pattern
Red and Black Hard Rubber (RHR) Swirl / Mottled
Cap Type
Screw Cap
Clip Design
Conklin ring-top style or specialized clip design characteristic of vintage models
Barrel Shape
Cylindrical with tapered ends
Nib Details
Nib Material
14K Gold
Nib Size
Fine
Nib Type
Flex
Nib Condition
Good condition with flexible tines, minor wear
Dimensions
Size / Dimensions
Approximately 125mm capped, 115mm uncapped
Weight Estimate
Lightweight, approx 15-20g
Heritage & Origin
Era / Period
Vintage 1910s-1920s
Country of Origin
USA
Rarity
Rare
Condition & Value
Overall Condition
Good vintage condition with age-appropriate wear and discoloration (fading to jade/greenish tint on ends)
Filling System Condition
Requires new sac installation for full functionality
Estimated Value
$250 - $400
Special Features
Distinctive crescent-filling mechanism patented by Roy Conklin with locking ring
Ink Recommendations
Standard washable fountain pen inks like Waterman Serenity Blue
Care Recommendations
Vintage hard rubber care; keep out of direct sunlight to prevent further discoloration, use safe dye-based inks, service the rubber sac periodically
Interesting Facts
Mark Twain was famously a major spokesperson and fan of the Conklin Crescent Filler, praising its inability to roll off desks because of the crescent mechanism.
Overall Assessment
A stunning and collectible vintage Conklin Crescent Filler in a highly desirable red and black mottled hard rubber pattern, featuring a flexible gold nib.