Parker

51

Fountain Pen

Parker 51

Filling System

Aerometric Filler

Condition

Good to Very Good (some visible micro-scratching on cap and barrel)

Estimated Value

$150 - $250 USD

Era

Vintage late 1940s to early 1950s

Pen Specifications

Pen Type

Fountain Pen

Filling System

Aerometric Filler

Body Material

Lucite (Acrylic Resin)

Trim Material

Gold-Filled Cap

Color / Pattern

Teal Blue or Forest Green (High contrast lighting) with Gold-Filled Insignia/Custom Cap

Cap Type

Slip Cap (CLutch Ring)

Clip Design

Arrow clip with feathered detailing and Blue Diamond or transitional variant

Barrel Shape

Tapered Torpedo

Nib Details

Nib Material

14K Gold

Nib Size

Fine/Medium

Nib Type

Hooded Standard Nib

Nib Condition

Excellent (appears centered with plenty of tipping material)

Dimensions

Size / Dimensions

Capped: ~138mm, Uncapped: ~127mm, Diameter: ~12mm

Weight Estimate

~20-22 grams, well-balanced towards the nib

Heritage & Origin

Era / Period

Vintage late 1940s to early 1950s

Country of Origin

USA

Rarity

Uncommon (Insignia-capped models are more desirable than standard Lustraloy)

Condition & Value

Overall Condition

Good to Very Good (some visible micro-scratching on cap and barrel)

Filling System Condition

Functional (requires inspection of the Pli-Glass sac)

Estimated Value

$150 - $250 USD

Special Features

Iconic hooded nib design to prevent ink evaporation

Ink Recommendations

Parker Quink, Waterman Serenity Blue, or J. Herbin Perle Noire

Care Recommendations

Avoid shimmer or high-sheen inks; flush with room temperature water; do not soak the cap.

Interesting Facts

The Parker 51 was marketed as 'The World's Most Wanted Pen' and was used by General Eisenhower to sign the treaties ending WWII in Europe.

Overall Assessment

A classic example of the 'aerometric' era Parker 51, featuring the highly sought-after gold-filled cap which elevates it from a standard workhorse to a luxury status symbol.

Identified on July 10, 2026