Mabie Todd & Co.

Swan (Nassau Clip)

Fountain Pen

Mabie Todd & Co. Swan (Nassau Clip)

Filling System

Lever Filler

Condition

Very Good vintage condition with vibrant color retention and minor brassing on trim

Estimated Value

$150 - $300 USD

Era

Vintage 1930s

Pen Specifications

Pen Type

Fountain Pen

Filling System

Lever Filler

Body Material

Celluloid

Trim Material

Gold-Plated

Color / Pattern

Blue Lapis Striped

Cap Type

Screw Cap

Clip Design

Nassau clip featuring the distinctive 'M' monogram and vertical 'Nassau' lettering with a ball end

Barrel Shape

Cigar-Shaped / Tapered

Nib Details

Nib Material

14K Gold

Nib Size

Medium

Nib Type

Flexible

Nib Condition

Good condition with proper tine alignment and springy flex typical of vintage Swan nibs

Dimensions

Size / Dimensions

Approximately 130mm capped, 118mm uncapped, standard vintage diameter

Weight Estimate

Lightweight, approximately 15-20 grams with balanced center of gravity

Heritage & Origin

Era / Period

Vintage 1930s

Country of Origin

United Kingdom / USA

Rarity

Uncommon

Condition & Value

Overall Condition

Very Good vintage condition with vibrant color retention and minor brassing on trim

Filling System Condition

Requires a new ink sac for full restoration of the lever filling functionality

Estimated Value

$150 - $300 USD

Special Features

Distinctive branded Nassau clip and striking blue lapis celluloid pattern

Ink Recommendations

Standard dye-based fountain pen inks such as Waterman Serenity Blue or Parker Quink

Care Recommendations

Handle vintage celluloid with care; avoid harsh solvents, excessive heat, and store away from direct sunlight

Interesting Facts

Mabie Todd was originally an American pencil manufacturer before becoming one of the premier British fountain pen makers in the early 20th century

Overall Assessment

A beautiful and collectible vintage British fountain pen featuring iconic 1930s celluloid and branding, well worth restoring to writing condition

Identified on September 26, 2026