MAJOHN P140 Demonstrator Fountain Pen - Large Clear Acrylic, 8 Nib (40 Nib Unit), Hard Rubber Feed & Copper Piston

Experience precision engineering and full visual ink control with the MAJOHN P140 Transparent Demonstrator Fountain Pen. Designed for fountain pen enthusiasts, calligraphers, and everyday writers, this oversized demonstrator pen features a high-clarity transparent body paired with an expansive #8 size nib (#40 nib unit). Fitted with an ebonite (hard rubber) feed for continuous, uninterrupted ink flow and built with a durable copper piston mechanism, it combines smooth ink capacity, satisfying writeability, and showcase-level craft design.

Key Features

• Large Clear Acrylic Demonstrator Body: High-transparency crystal body offers an unobstructed view of internal ink levels and copper piston mechanics.

• Oversized #8 Nib (#40 Nib Unit): Large stainless steel nib delivers a comfortable writing angle, effortless glide, and broad calligraphic presence.

• Ebonite (Hard Rubber) Feed: Natural ebonite ink collector ensures consistent wet ink delivery and prevents dry starts or ink skipping.

• Heavy-Duty Copper Piston Mechanism: Precision metal internal piston rod provides smooth, high-capacity bottled ink filling with exceptional durability.

• Ergonomic Precision Balance: Thoughtfully weighted clear acrylic construction feels balanced in hand during long writing, journaling, and sketching sessions.

Why Choose Our MAJOHN P140 Fountain Pen

Standard plastic fountain pens use weak converter cartridges, small restricted nibs, and cheap feed channels that dry out quickly. This MAJOHN P140 demonstrator fountain pen combines a heavy-duty copper piston filling system, ebonite hard rubber feed channels, an oversized #8 nib, and crystal-clear demonstrator acrylic—giving your desk collection, calligraphy toolkit, and executive writing stationery an instant upgrade.

Perfect For

• Fountain pen collectors, calligraphy artists, journaling enthusiasts, and executive writers

• Everyday note-taking, sketching, signing documents, and long-form manuscript writing

• Pairing with vibrant bottled inks, shimmer inks, and high-capacity fountain pen inks

• Gifting as a premium writing instrument for grads, professionals, and pen aficionados

Specifications

• Brand: MAJOHN (Majohn / Moonman)

• Model: P140 Demonstrator Fountain Pen

• Material: High-Clarity Transparent Acrylic Body with Copper Metal Internal Components

• Nib Size: #8 Nib (#40 Nib Unit)

• Feed System: Ebonite (Hard Rubber) Feed Tongue

• Filling Mechanism: Copper Screw-Action Piston Filling

• Key Properties: Oversized Demonstrator, High Ink Capacity, Leak-Proof Seal, Smooth Flow

• Ideal Uses: Calligraphy, Executive Writing, Journaling, Desk Pen Collection