Eboya Hokabune Large Ebonite - Kogetsu Yellow 14K Gold Bock M Nib Fountain Pen For Sale

Discover the Eboya Houga Large Kogetsu Yellow Ebonite Fountain Pen, a stunning 2023 masterpiece. Featuring a Bock 14K gold medium fine nib, this pen delivers a smooth writing experience. Crafted from unique color-marbled ebonite, it boasts a stylish clipless design and a substantial 18 mm barrel diameter.

Each pen is hand-finished, ensuring individual character and quality. Includes original Eboya box, papers, and converter. Ideal for collectors and enthusiasts seeking authentic Japanese craftsmanship.

Experience luxurious writing ENGEIKA SINCE 1987

Eboya Hokabune Large Ebonite - Kogetsu Yellow 14K Gold Bock M Nib Fountain Pen

About This Piece

Original & Authentic

2023 Eboya Hokabune Large Ebonite - Kogetsu Yellow Fountain Pen

[Fitted with Bock 14K-585 Gold Medium Size Nib]

Specifications

Brand

Eboya

Model

Hokabune

Era / Period

2023

Body Material

Ebonite

Filling System

Cartridge or Converter (International Cartridge or Converter)

Nib Material

Bock 14K-585 Gold Medium Size Nib

Nib Size

Medium

Colour

Kogetsu Yellow

Country of Origin

Japan

Includes

Pen + Original Eboya Box + Papers + Converter

Weight

33.8 g

Length

149.8 mm

History of Eboya

Eboya (笑暮屋) is the fountain pen brand operated by Nikko Ebonite Manufacturing Co., Ltd., a Tokyo manufacturer specializing in ebonite. The company’s history is closely connected to the material itself, as ebonite was traditionally used for products such as electrical components and musical instrument mouthpieces before modern plastics became more widely used. Today, Nikko Ebonite is one of the few remaining Japanese manufacturers dedicated to producing ebonite.

As demand for traditional ebonite declined, Nikko Ebonite began developing its own finished products in the late 2000s. The company eventually turned its attention to fountain pens, using its experience in manufacturing ebonite to create writing instruments from the material it produced itself. In 2009, the company introduced its first fountain pens at an industrial exhibition in Tokyo. Five pens, priced at ¥60,000 each, were sold during the two-day exhibition, encouraging the company to begin full-scale production.

Eboya’s pens are made from original color-marbled ebonite, with the material being processed and finished by craftsmen in Tokyo. The company emphasizes that producing the pens requires careful attention to changes in the material, temperature, tools, and other conditions throughout the manufacturing process. Each piece of marbled ebonite develops its own pattern, so individual pens can have differences in their appearance.

The name Eboya is now closely associated with Nikko Ebonite’s effort to continue the tradition of Japanese ebonite manufacturing through fountain pens. The company also opened its own Eboya shop in Arakawa, Tokyo, in 2014, further establishing the brand as a direct expression of its ebonite manufacturing heritage.

Eboya Hakobane (Large) - Kogetsu Yellow

The Eboya Hakobune (Large) – Kogetsu Yellow is a handcrafted Japanese fountain pen made from Eboya’s original color-marbled ebonite. The Hakobune features a traditional barrel-shaped design with no clip, giving it a clean and understated profile. The name “Hakobune” (方舟) refers to a rectangular boat, which inspired the shape of the model.

The Kogetsu Yellow (江月) finish combines a deep black ebonite base with a distinctive yellow marble pattern. Eboya describes “Kogetsu” as referring to the image of the moon reflected on the surface of water. Because the marbled ebonite is produced and finished by hand, each pen has its own individual pattern and texture rather than having an identical printed finish.

As the Large version, the Hakobune measures approximately 150 mm capped, with an 18 mm cap diameter and 18 mm barrel diameter, giving it a substantial full-sized profile. The ebonite construction also provides the characteristic warm, slightly tactile feel of hard rubber, while the carefully polished surface gives the pen a smooth finish.

The Hakobune Large uses an international-standard cartridge/converter filling system and is fitted with a Bock #6 14K gold nib, available in Fine, Medium Fine, Medium, and Broad configurations. The combination of its substantial dimensions, clipless design, and black-and-yellow marbled ebonite gives the Kogetsu Yellow a distinctive appearance while retaining the straightforward, practical construction of the Hakobune model.

Bock 14K Gold Nib

The Eboya Hokabune (Large) is fitted with a Bock #6 14K gold nib in a Medium (M) configuration. Eboya lists the Large Houga with a Bock #6 14K gold nib and offers Fine, Medium Fine, Medium, and Broad point options.

The 14K gold construction provides the nib with good corrosion resistance and a degree of natural resilience. It is designed for controlled, consistent writing rather than being a flex-oriented nib, giving the writer a stable writing point with a responsive feel under normal writing pressure.

The Medium Fine point sits between a Fine and Medium width, making it a versatile choice for everyday writing. It provides more ink presence and smoothness than a very fine point while remaining sufficiently narrow for detailed handwriting, notes, and general correspondence.

The Bock #6 format is appropriately proportioned for the substantial 18 mm Large Houga, giving the pen a balanced appearance and a substantial writing point. Together, the 14K gold construction and MF configuration provide a practical combination of precision, smoothness, and controlled line width.

Nib Size M Material 14K Gold

Condition

S

In Mint Condition

This pen was sold on July 2023, It has been used however it is still in mint condition. There is no wear and tear on the pen (at least seen through the naked eye). The Pen is made out of ebonite and is the biggest model.

Item Specifics ◆Brand EboyaMaterial EboniteInk Color BlackNib Size Medium Fine (MF)Nib Material Gold, 14KVintage NoType Fountain PenCountry of Origin JapanModified Item NoPen Type FountainBody Details Nakaya BriarwoodMPN DL-1000GS About Us Condition Returns Shipping

ENGEIKA 円花家

For every seed you plant, let us help nurture it together. Just as a plant flourishes through daily care and dedication, at Engeika, your satisfaction grows through our lifelong experience, sincere passion, and careful attention to every detail.

Founded in 1987, Engeika has grown into a leading direct-to-customer e-commerce retailer specializing in writing instruments, watches, bags & cases, and more recently, lighters. Our mission is to bring exceptional products with outstanding quality, craftsmanship, and design to customers around the world.

The name Engeika means “horticulturist” in Japanese — a person who combines both scientific knowledge and artistic sensibility to carefully nurture every plant in their garden. Watching those plants grow becomes their greatest joy.

That philosophy is at the heart of everything we do. At Engeika, we take pride in caring for each and every customer with the same dedication. Your satisfaction is not only our goal, but also our daily motivation and happiness.

Through every product we offer, we hope to deliver not only the finest quality and most beautiful designs, but also the inspiring stories and history behind them.

About Writing Instruments

Our journey began with a deep passion for fountain pens and the art of writing. Like many enthusiasts, we started as beginners. Over time, through years of learning, collecting, restoring, and experiencing countless writing instruments, our knowledge and appreciation continued to grow.

Today, we are proud to offer not only carefully selected writing instruments, but also honest guidance and personalized support to help you find the perfect writing experience.

Whether you are a longtime collector, a first-time fountain pen user, or simply curious about the world of writing instruments, we are always happy to help.

We warmly welcome messages in any language. We will always do our very best to understand you and reply in English or Japanese.

Item Condition Grade for Engeika Vintage Fountain Pen: Please Check Our Vintage Fountain Pen Grade list and read the item\'s condition list to see the Pen\'s actual grade ratings

All our pens are original and authentic because they\'re sourced directly from the owners of fountain pen collectors, factory owners in the 40s who\'s sons/daughters have sold their grandparent\'s fountain pen old stock and hence cant be sourced online. But for an even more detailed description of our pens condition, we have provided a grade tier list to help you determine if this is the pen for you.

S TIER — Almost like Brand New: This pen is in exceptional condition, almost as if it were brand new. There are no signs of rust on the clip, and the original filling system is still intact. The cap and piston filler screw on and off smoothly. The nib color is vivid with limited to no scratches. The pen feels smooth, polished, and shiny.

A TIER — Excellent Condition: This pen is in excellent condition with only minor flaws. There may be small chips on the nib, but no rust is present. Hairline scratches may be visible on the body, cap, and nib. The pen can be easily screwed on and off, and the filling system works properly.

B TIER — Good Condition: This pen is in good condition and is perfectly usable. It may have some rust on the clip and trim. The nib color may have changed due to weathering or ink stains. The filling system has been replaced with a new one.

C TIER — Fair Condition: This pen is in fair condition and is functional, but it has noticeable scratches on the body and cap. The trim may be rusted or chipped. The filling system also requires replacement.

F TIER — Poor Condition: This pen is still writable, but it is cosmetically in a poor state. A major refurbishment has been conducted to restore the pen to an acceptable condition, but in the process, many of its original characteristics have been lost.

Please note that this item condition grade is based on general standards and may vary depending on the specific criteria and expectations of different collectors or sellers.

Returns accepted within 30 days of delivery. Buyer pays return shipping. Item must be returned in the same condition as received. Vintage items may show normal signs of age and use. Please review photos carefully and contact us with any questions before purchase. Refund issued after returned item inspection.

Worldwide Shipping & Customs

2026 Update

⚠ Attention: High-Duty Regions (LATAM)

For buyers in the following regions, import fees in 2026 are significantly higher than the global average. These fees are determined by your government and are not included in the shipping price.

🇧🇷 BRAZIL: Combined taxes (II, PIS/COFINS, and ICMS) often reach 60–80% of the total value. A valid CPF (Tax ID) is strictly required for all shipments.

🇨🇱 CHILE: The duty-free threshold is only $30 USD. Orders above this are subject to 6% duty + 19% VAT on the total cost (including shipping).

🇦🇷 ARGENTINA: Strict \"door-to-door\" regulations apply. Buyers may need to confirm receipt on the AFIP website to clear customs.

Global Shipping Status

USA: Standard Shipping via Japan Post remains suspended. All US-bound orders ship via Express Courier (DDP) to comply with current US import regulations.

TURKEY: All orders ship via Japan Post EMS ($30 USD). Turkish customs require a Customs Broker; these fees are the buyer\'s responsibility and are non-refundable if the package is rejected.

RESTRICTED: We are currently unable to deliver to Russia, North Korea, Belarus, or Ukraine.

Express-Only Regions — $75 USD Flat Rate

Due to current logistics challenges, shipping to the following countries is $75 USD via Express Shipping by default:

Yemen, Cyprus, Jordan, Kuwait, Lebanon, UAE, Oman, Venezuela, Qatar, Egypt.

For US Customers: All-Inclusive (DDP)

As of late 2025, the US \"Duty-Free\" allowance was suspended. To ensure a seamless delivery:

Final Price Guarantee: Your checkout total includes the 20% US Import Duty, the $20 Government Surcharge, and all brokerage fees.

No Surprise Bills: You will not receive an invoice from the courier (UPS/DHL) for additional taxes.

For International Customers (Non-US): Standard (DDU)

We ship Delivered Duty Unpaid (DDU) for all other countries.

Buyer Responsibility: You are responsible for local VAT, GST, and duties.

Payment Tip: Pay your duties online via the link sent by the carrier (UPS/DHL) to avoid the $12.00 in-person surcharge (ICOD fee) and speed up delivery by 1–2 days.

Shipping Transparency & Online Payment

100% Prepaid Transport: We pay 100% of the international transport fees to the carrier (UPS, DHL, or Japan Post) before your item leaves Japan. In 99% of cases, your order will reach your door with no further delivery fees — only government duties apply.

How to Pay Your Customs Duties: When your package arrives in your country, the carrier (UPS or DHL) will contact you via SMS or Email with a payment link. We strongly recommend paying online through the official carrier website immediately.

Avoid \"Payment on Delivery\" Surcharges:

› UPS \"ICOD\" Fee: UPS now charges an additional $12.00 surcharge for import charges collected at the door. This fee is waived if you pay online.

› DHL Disbursement Savings: DHL offers a discounted processing rate for duties paid via their \"On Demand Delivery\" portal. Paying in person results in a higher \"Cash Handling\" fee.

› Japan Post EMS: Your local post office (e.g., USPS) may charge a small nominal fee ($5–$10) for \"Postage Due\" or final-mile processing.

Important Policies

› Address: Please input your shipping address in the English alphabet only.

› Combined Shipping: We offer combined shipping for up to 10 items purchased within 3 days.

› Customs Refusal: If a package is returned because customs fees were not paid, we will refund the order minus the cost of two-way shipping (to and from your country) and any unpaid fees.

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