Parker

"51" Vacumatic

Fountain Pen

Parker "51" Vacumatic

Filling System

Vacumatic Filler

Condition

Very Good - minor micro-scratching consistent with age, plating intact

Estimated Value

$100 - $250 depending on functionality and exact date code

Era

Vintage 1940s (World War II era)

Pen Specifications

Pen Type

Fountain Pen

Filling System

Vacumatic Filler

Body Material

Lucite (Methacrylate)

Trim Material

Gold-Plated

Color / Pattern

Black with double cap band

Cap Type

Slip Cap

Clip Design

Classic Parker Arrow clip with open diamond at the top

Barrel Shape

Streamlined, Torpedo

Nib Details

Nib Material

14K Gold

Nib Size

Fine

Nib Type

Hooded, Semi-Hooded

Nib Condition

Likely good, well-aligned tipping hidden under the hood

Dimensions

Size / Dimensions

Approximately 138 mm capped, 126 mm uncapped, 154 mm posted; 12 mm diameter

Weight Estimate

22 grams, well-balanced

Heritage & Origin

Era / Period

Vintage 1940s (World War II era)

Country of Origin

USA

Rarity

Common

Condition & Value

Overall Condition

Very Good - minor micro-scratching consistent with age, plating intact

Filling System Condition

Requires inspection; diaphragm likely needs replacement if rubber has perished

Estimated Value

$100 - $250 depending on functionality and exact date code

Special Features

Iconic arrow clip, aerometric/vacumatic historical significance, hooded nib design

Ink Recommendations

Parker Quink Blue or Black, avoid heavy pigment or high-sheen inks

Care Recommendations

Flush with clean water regularly; do not soak the plastic barrel; restore the vacumatic filling system carefully

Interesting Facts

The Parker 51 was introduced in 1941 (hence '51' for the company's 51st anniversary) and is frequently cited as one of the best-designed pens of the 20th century.

Overall Assessment

A legendary vintage fountain pen that represents a pinnacle of mid-century industrial design and reliable writing performance.

Identified on August 6, 2026