Can Japan 1870 1 Yen Type 1 圓 銀 Right JNDA 01-9A Be Made Into Jewelry? A Crafter’s Guide

Historical Significance

The Japan 1870 1 Yen Type 1 圓 銀 Right JNDA 01-9A represents a fascinating chapter in Japanese numismatic history. This coin emerged during the Meiji Restoration period when Japan was transitioning from its feudal system to a modern nation-state. The yen was introduced as Japan’s new decimal currency system, replacing the complex mon-based system that had been in use for centuries.

The “圓” character on the coin represents the Japanese word for “yen” or “circle,” symbolizing both the currency and the round shape of the coin itself. The “銀” (gin) marking indicates the coin’s silver content, which is crucial for both collectors and crafters considering this piece for jewelry making.

Identifying Key Markers

When examining this coin for crafting potential, several key markers must be considered:

Countermark Variations

The forum discussion reveals that the “Right” designation specifically refers to coins with the “gin” (silver) countermark stamped on the right side of the coin. This is distinct from coins with the countermark on the left side, which were stamped at the Osaka Mint. The Tokyo Mint countermarks, appearing on the right, are significantly rarer – with approximately 1 million coins stamped compared to 10 million from Osaka.

Design Elements

The Type 1 design features the chrysanthemum crest on the obverse, representing the Imperial seal of Japan. The reverse displays the denomination “一圓” (1 yen) along with the year of issue in Japanese era dating (明治3年, Meiji 3 year, equivalent to 1870 AD).

Metal Composition and Silver Content

For jewelry crafting, the silver content is perhaps the most critical factor. The 1870 1 Yen coin was struck in .900 fine silver, containing 90% pure silver with 10% copper added for durability. This composition makes it excellent for crafting purposes:

• Workability: The .900 silver alloy strikes an ideal balance between purity and hardness, making it malleable enough for shaping while maintaining structural integrity.
• Hallmark Value: The “銀” countermark serves as a natural hallmark, adding authenticity and historical value to any crafted piece.
• Oxidation Characteristics: The copper content allows for beautiful patina development over time, creating unique coloration that many jewelry enthusiasts appreciate.

Metal Hardness and Durability

The hardness of this coin makes it particularly suitable for ring crafting. With a Vickers hardness of approximately 65-75 HV (depending on the specific alloy batch), it falls into the ideal range for jewelry work:

• Resists Scratching: Hard enough to maintain its design details even with regular wear.
• Forms Well: Soft enough to be shaped into rings without cracking or excessive work hardening.
• Annealing Properties: The silver-copper alloy responds well to annealing, allowing for multiple forming operations if needed.

Aesthetic Appeal for Rings and Jewelry

The visual elements of this coin translate beautifully into jewelry pieces:

Obverse Design
The chrysanthemum crest provides a central focal point that works excellently as the face of a ring. The radiating petals create natural symmetry that complements the circular form of most rings.

Reverse Design
The “一圓” characters and date provide additional visual interest on the opposite side of the coin. When crafted into a ring, these elements can be positioned to show through on the interior or exterior of the band.

Countermark Placement
The “銀” countermark, whether on the left or right side, creates an asymmetrical element that adds character to jewelry pieces. The right-side countermarks are particularly prized for their rarity.

Crafting Considerations

When working with this coin for jewelry making, several factors should be considered:

• Preservation vs. Alteration: The historical value of these coins means that extensive modification should be approached carefully. Many crafters prefer to preserve the coin’s integrity while creating settings that showcase rather than alter the original design.
• Size Compatibility: The 1 Yen coin measures approximately 30mm in diameter, making it suitable for larger statement rings or pendants.
• Weight Considerations: At approximately 26.96 grams, the coin has substantial weight that translates to a premium feel in jewelry pieces.

Market Value and Investment Potential

The forum discussion reveals interesting market dynamics for these coins:

“With gin mark the price is couple times higher than without gin mark. It is very collectible with gin mark especially with a non details grade.”

This price differential makes the countermarked varieties particularly attractive for crafters, as they offer both aesthetic appeal and potential investment value. The rarity of right-side countermarks (estimated 1 million vs. 10 million left-side countermarks) further enhances their desirability.

Recent auction results support this premium:

• A right-side countermarked example sold for a significant premium at a Hong Kong auction
• VF or XF Details examples with right-side countermarks have achieved prices exceeding $1,000 at major auctions

Authentication and Grading

For crafters working with these coins, authentication is crucial. The PCGS population reports show 28 examples graded for the right-side countermark variety and 17 for the left-side variety. However, the forum discussion notes this survival rate appears inverted from what mintage figures would suggest, indicating that right-side countermarks may be even rarer than mintage figures alone would indicate.

Conclusion

The Japan 1870 1 Yen Type 1 圓 銀 Right JNDA 01-9A represents an exceptional candidate for jewelry crafting. Its .900 silver composition provides the perfect balance of workability and durability, while its historical significance and aesthetic appeal create pieces with both beauty and story. The rarity of right-side countermarks adds an element of exclusivity that discerning jewelry collectors appreciate.

For the coin ring artisan, this piece offers a unique opportunity to create jewelry that bridges historical artifact and contemporary fashion. Whether preserved in a protective setting or carefully shaped into a ring, these coins carry with them the weight of Japanese history and the intrinsic value of fine silver, making them truly special materials for jewelry creation.

Related Resources

You might also find these related articles helpful:

• Preserving Japan’s Meiji Era Treasure: The 1870 1 Yen Type 1 圓 銀 Right – Historical Significance The Japan 1870 1 Yen Type 1 圓 銀 Right (JNDA 01-9A) stands as a numismatic milestone, marking Jap…
• Grading Japan 1870 1 Yen Type 1 圓 銀 Right JNDA 01-9A: The Difference Between $10 and $1,000 – The Historical Significance of Japan’s First Silver Yen The 1870 1 Yen Type 1 silver coin represents a pivotal mom…
• Is Your Japan 1870 1 Yen Type 1 圓 銀 Right JNDA 01-9A Real? How to Spot a Fake – The Critical Importance of Authentication With counterfeits flooding the market, knowing the specific diagnostic points …