Conway Stewart
Duro / No. 388 or similar marbled set
Fountain Pen and Pencil Set

Filling System
Lever Filler
Condition
Very Good vintage condition with minor brassing
Estimated Value
$150 - $250
Era
Vintage 1930s-1950s
Pen Specifications
Pen Type
Fountain Pen and Pencil Set
Filling System
Lever Filler
Body Material
Casein / Celluloid
Trim Material
Gold-Plated
Color / Pattern
Green Marble / Pearl and Black
Cap Type
Screw Cap
Clip Design
Classic Conway Stewart spear/paddle clip with ball end
Barrel Shape
Cigar-Shaped Tapered
Nib Details
Nib Material
14K Gold
Nib Size
Medium
Nib Type
Semi-Flex
Nib Condition
Good condition with correct tipping and slight flexibility
Dimensions
Size / Dimensions
Approximately 130mm capped
Weight Estimate
Lightweight, approx 18g
Heritage & Origin
Era / Period
Vintage 1930s-1950s
Country of Origin
United Kingdom
Rarity
Uncommon
Condition & Value
Overall Condition
Very Good vintage condition with minor brassing
Filling System Condition
Needs new sac for full functionality
Estimated Value
$150 - $250
Special Features
Matching fountain pen and mechanical pencil set in vibrant green marble
Ink Recommendations
Standard washable blue or green fountain pen ink, avoid permanent iron gall
Care Recommendations
Do not submerge in water due to historical casein/celluloid material; clean gently with a damp cloth
Interesting Facts
Conway Stewart was one of Britain's premier pen manufacturers during the mid-20th century, often associated with British political history and Winston Churchill
Overall Assessment
A charming and highly collectible British vintage writing set featuring striking green marbled celluloid