Esterbrook
J Series (Est. J, LJ, or SJ)
Fountain Pen

Filling System
Lever Filler
Condition
Very Good vintage condition with minor micro-scratches
Estimated Value
$40 - $80
Era
Vintage 1940s-1950s
Pen Specifications
Pen Type
Fountain Pen
Filling System
Lever Filler
Body Material
Celluloid / Plastic
Trim Material
Chrome-Plated
Color / Pattern
Black
Cap Type
Screw Cap
Clip Design
Classic Esterbrook blade clip with embossed lettering
Barrel Shape
Cigar-Shaped / Rounded ends
Nib Details
Nib Material
Steel
Nib Size
Medium (Interchangeable Unit)
Nib Type
Standard
Nib Condition
Clean and well-aligned with good tipping
Dimensions
Size / Dimensions
Approximately 5 inches capped
Weight Estimate
Lightweight, around 15-20 grams
Heritage & Origin
Era / Period
Vintage 1940s-1950s
Country of Origin
USA
Rarity
Common
Condition & Value
Overall Condition
Very Good vintage condition with minor micro-scratches
Filling System Condition
Requires new ink sac for functionality
Estimated Value
$40 - $80
Special Features
Interchangeable nib system allowing screw-in nib units
Ink Recommendations
Standard modern fountain pen inks such as Waterman Serenity Blue
Care Recommendations
Flush with clean water regularly; replace the latex sac periodically
Interesting Facts
Esterbrook was once the largest nib manufacturer in the United States
Overall Assessment
A classic, highly reliable vintage American workhorse pen ideal for daily writing and beginners to vintage pens