Unknown Vintage Brand (Possibly French or Italian, such as Bayard or similar European maker)
Flat-Top Pocket/Standard Fountain Pen
Fountain Pen

Filling System
Button Filler
Condition
Fair to Good (Vintage condition with noticeable discoloration/oxidation of the ebonite to a brownish hue, brassing on trim, and visible wear)
Estimated Value
$50 - $150 depending on brand identification and restoration status
Era
Vintage 1920s-1930s
Pen Specifications
Pen Type
Fountain Pen
Filling System
Button Filler
Body Material
Hard Rubber (Chased Ebonite)
Trim Material
Gold-Plated
Color / Pattern
Black Chased Hard Rubber (HR) with wood-grain or chevron chasing pattern
Cap Type
Screw Cap
Clip Design
Ball-end vintage clip with gold plating showing brassing
Barrel Shape
Flat-Top cylindrical
Nib Details
Nib Material
14K Gold
Nib Size
Fine
Nib Type
Flexible
Nib Condition
Fair, shows some discoloration and spots, needs cleaning and potential tines alignment check
Dimensions
Size / Dimensions
Approximately 125mm capped, 115mm uncapped, standard vintage slim diameter
Weight Estimate
Lightweight, approximately 12-15 grams
Heritage & Origin
Era / Period
Vintage 1920s-1930s
Country of Origin
Likely France or USA
Rarity
Uncommon
Condition & Value
Overall Condition
Fair to Good (Vintage condition with noticeable discoloration/oxidation of the ebonite to a brownish hue, brassing on trim, and visible wear)
Filling System Condition
Untested; rubber sac likely needs replacement as is common with vintage button/lever fillers
Estimated Value
$50 - $150 depending on brand identification and restoration status
Special Features
Chased ebonite body featuring a fine chevron/woodgrain pattern typical of the interwar period
Ink Recommendations
Standard washable fountain pen inks like Waterman Serenity Blue or Parker Quink to protect vintage materials
Care Recommendations
Do not soak the ebonite in hot water or harsh chemicals to prevent further discoloration; professional sac replacement recommended; keep away from direct sunlight
Interesting Facts
Hard rubber (ebonite) was the primary material for fountain pens before the advent of celluloid and injection-molded plastics in the late 1920s and 1930s, and exposure to light causes it to oxidize from black to brown.
Overall Assessment
A charming and authentic vintage hard rubber fountain pen from the golden era of writing instruments, presenting a rewarding project for a vintage pen restoration enthusiast.