Conway Stewart
Slimpen
Fountain Pen

Filling System
Lever Filler
Condition
Fair to Good, showing visible wear, brassing, and some oxidation on the gold-filled surface
Estimated Value
$50 - $150 depending on full restoration and nib condition
Era
Vintage 1930s-1950s
Pen Specifications
Pen Type
Fountain Pen
Filling System
Lever Filler
Body Material
Casein / Plastic
Trim Material
Gold-Filled
Color / Pattern
Gold-Filled Wave Pattern / Herringbone
Cap Type
Slip Cap
Clip Design
Tapered clip with engraved brand name SLIMPEN vertically along the shaft
Barrel Shape
Cylindrical with tapered ends
Nib Details
Nib Material
14K Gold
Nib Size
Fine
Nib Type
Semi-Flex
Nib Condition
Appears intact, needs inspection for tine alignment
Dimensions
Size / Dimensions
Approximately 120mm capped
Weight Estimate
Lightweight, approx 15g
Heritage & Origin
Era / Period
Vintage 1930s-1950s
Country of Origin
United Kingdom
Rarity
Uncommon
Condition & Value
Overall Condition
Fair to Good, showing visible wear, brassing, and some oxidation on the gold-filled surface
Filling System Condition
Likely requires a new sac and lever mechanism restoration
Estimated Value
$50 - $150 depending on full restoration and nib condition
Special Features
Distinctive engraved clip spelling out SLIMPEN with ball-end rivets
Ink Recommendations
Standard washable dye-based inks, avoiding high-staining or iron gall inks due to vintage sac preservation
Care Recommendations
Store in a dry environment away from direct sunlight; avoid soaking casein bodies in water
Interesting Facts
Conway Stewart was a premier British pen manufacturer known for vibrant casein and chased metal overlays during the mid-20th century
Overall Assessment
A charming and collectible British vintage pen that requires restoration to return to fully functional writing condition