---
title: "Mameitagin"
url: "https://ittendo.com/en/coinpedia/edo-silver-003-mameitagin"
site: "ITTENDO"
type: "coinpedia"
category: "edo-silver"
series: "Edo Silver Coins"
lang: "en"
---
# Mameitagin

> Conclusion: Mameitagin is an accessible entry point for coin collecting, but rare "Gunun" varieties can be highly valuable. Developing an eye for authentication and understanding market value is crucial.

- 時代: 江戸
- 素材: 銀
- 額面: 朱 / 分
- 発行量: 少ない
- 価格帯: 普及

## Basic Overview and Historical Background of Mameitaggin

Mameitaggin are small, assayed silver coins circulated during the Edo period. As their name suggests, they have an irregular shape resembling beans and were minted with the same silver quality as Chogin. They were primarily used as subsidiary coins to supplement Chogin in large transactions and were widely used in small transactions.

Their origins can be traced back to the "Jurakudai Gin" minted under the unified government of Toyotomi Hideyoshi in the late 16th century. In the Edo period, Tokugawa Ieyasu established the Ginza mint during the Keicho era, initiating full-scale minting and establishing the foundation for a nationwide monetary economy.

The handcrafted feel, with no two pieces having the same shape, is a major attraction for collectors. This unique shape and historical background make Mameitaggin more than just currency. For more information on the entire currency system of the Edo period, refer to [Introduction to Edo Silver Coins (Chogin/Mameitaggin)](/coinpedia/edo-silver-001-overview).

## Changes in Silver Quality and Economic Impact

The silver content of Mameitaggin varied significantly with time, in conjunction with Chogin. The early Keicho Mameitaggin contained about 80% silver, characterized by a beautiful silver-white color. However, during the Genroku period, the content fell to 64%, and by the Hoei period, it dropped to 50% due to re-minting driven by the shogunate's financial difficulties.

Although the content temporarily recovered to 80% during the Kyoho period, it declined again to 46% in the Genbun period, 36% in the Bunsei period, and finally to 26.1% in the Tempo period. These fluctuations significantly affected the economics and prices of the time.

High-quality Mameitaggin retained the luster of pure silver, while those of lower quality contained more copper, resulting in a reddish-brown hue. These color differences serve as crucial clues for estimating the approximate age of the coins. The color change in low-quality Mameitaggin is also a point of appreciation.

## The Charm of Diverse Weight and Shapes

Like Chogin, Mameitaggin were weighed for transactions and did not conform to strict modern coin standards. Their weight usually ranged from 2 to 10 grams, but varied widely from tiny pieces under 1 gram to large pieces over 15 grams.

The shape also varied significantly, with ovals being the most common, along with circles, triangles, and irregular pentagons. In some pieces, the silver masses were broken and hammered into shape, leaving noticeable traces of craftsmanship. This non-uniformity enhances their value as unique "one-of-a-kind" items.

When purchasing, it is vital to check the weight with a precision scale to ensure it falls within the expected range. As the value is directly linked to weight, even slight differences can significantly impact prices. Particularly in rare, marked pieces, weight can also be a premium factor.

## The Stories and Premium Value Behind Impressed Marks

Mameitaggin often feature various impressed marks on their surfaces. The most common is the image of "Daikokuten," but there are also marks indicating age such as "寳," "文," "保," and a variety of auspicious symbols like treasure ships, fans, cranes, turtles, pines, bamboos, and plums.

These marks were individually hand-stamped by craftsmen at the Ginza mint. Especially pieces with multiple auspicious marks, known as "Gun'in Mameitaggin," are extremely popular. They were believed to be specially made for ceremonial or gift purposes and are valued higher than regular Mameitaggin.

The sharpness, placement, and combination of these marks greatly influence their rarity and market price. Motifs with positive connotations are in high demand among collectors and are a crucial evaluation point. Delving into the variations of these marks is one of the joys of collecting Mameitaggin.

## Distinctive Features and Collectible Value of Mameitaggin by Era

Mameitaggin exhibit different characteristics depending on the era they were minted in. **Keicho Mameitaggin** (minted from 1601) are known for their high silver content of about 80% and beautiful white silver color, making them the most popular. Due to their relatively low number in existence, they hold high collectible value.

**Genroku and Hoei period Mameitaggin** (from 1695) tend to darken easily due to the decreased silver content. Nonetheless, the reminting during this period heavily reflects the financial situation of the shogunate, providing them with high historical value as records.

**Kyoho Mameitaggin** (from 1714) saw the silver content restored to 80%, showcasing a beautiful silver hue second only to Keicho Mameitaggin. Known for a good balance between price and quality, these are recommended for beginners. **Mameitaggin from the Genbun period onwards** (from 1736) have lower content but boast a variety of mark types that allow for the enjoyment of diverse designs. Each era's Mameitaggin offers different charms and collection themes.

## Authentication Tips to Avoid Forgeries

Appraising Mameitaggin requires specialized knowledge due to their small size and diversity. Forgeries include "Shichu Mameitaggin," illegally minted during the Edo period by private individuals, and modern reproductions. Key points for identifying authenticity are as follows:

1. **Specific Gravity Calculation:** Genuine silver has a specific gravity of about 10.49. Illicit items typically have a lower specific gravity, necessitating precise measurements.
2. **Impressed Mark Carving:** Genuine marks are deeply and clearly engraved, with a robust quality achieved through hand stamping. Forgeries are often shallowly carved and appear unnatural.
3. **Surface Texture:** Observe the uneven surface texture, fine bubbles, and casting marks characteristic of handcrafted minted items. These differ from the texture of modern precision-minted items.
4. **Acid Test:** A small amount of sulfuric acid can be applied to confirm discoloration reactions. This is a last resort, not recommended for non-experts, as it may damage the coin.

A comprehensive assessment of these points is necessary. For more detailed information, refer to [Complete Guide to Detecting Forgeries and Altered Items](/coinpedia/basics-004-fakes).

## Market Price Structure and Premium Realities

The market price of Mameitaggin varies widely depending on era, silver content, weight, mark type and clarity, and condition. For example, standard Keicho Mameitaggin range from 10,000 to 30,000 yen, while prime condition pieces can go for 50,000 to 100,000 yen. Standard Kyoho Mameitaggin typically range from 5,000 to 15,000 yen, and standard Tempo Mameitaggin from 3,000 to 8,000 yen.

Notably expensive are "Gun'in Mameitaggin," featuring multiple clear auspicious marks, which can command prices three to ten times higher than regular contemporaneous pieces. Auction records show top-quality, marked Keicho Mameitaggin have even been sold for over 500,000 yen. Rare marks or larger pieces are highly sought after by collectors and tend to fetch high prices.

Because the market price is always fluctuating, regularly checking [price trend charts](/market/index) is crucial for information gathering.

## Methods of Acquisition and Purchasing Tips for Mameitaggin

Mameitaggin typically cost several thousand to tens of thousands of yen per piece, making them well-suited as introductory items for coin collecting. Major acquisition methods include purchasing from specialized coin dealers, auctions, and coin fairs.

Purchasing from a specialized dealer offers high reliability in authenticity and is the safest option for beginners. Auctions can provide hidden treasures, but it can be challenging to accurately assess mark clarity and detailed conditions from photos alone. If possible, it is recommended to examine the actual item.

When purchasing, always measure the weight with a precision scale (to 0.01g accuracy) to verify it matches the provided information. Also, cross-reference attributes such as silver content and era with available reference information; this habit is crucial for avoiding pitfalls. More detailed purchasing methods are explained in [Guide to Coin Acquisition and Purchase Methods](/coinpedia/basics-008-shotai).

## Effective Exit Strategies and Liquidity

Mameitaggin have a lower price point compared to Chogin, making it more effective to sell them in lots rather than individually, attracting more attention from buyers. Especially at specialized auctions, listing them as a "Mameitaggin collection" can achieve higher evaluations.

The buyer base ranges from intermediate collectors to advanced enthusiasts, and their liquidity is somewhat better compared to Chogin. However, for highly rare marked pieces or early Keicho Mameitaggin, it's standard practice to list them individually to highlight their maximum value, aiming for the highest possible price.

Additionally, selling as an "Edo Assayed Silver Coin Set" combining both Chogin and Mameitaggin can enhance added value. Establishing an appropriate exit strategy can maximize the collection's value. For more on using auctions, see [Introduction to Coin Auctions and Utilization Methods](/coinpedia/basics-007-auction).

## Beginning Recommendation and Starting Collection for Beginners

For those new to collecting Mameitaggin, it is recommended to start with a "standard medium-sized piece (3-5g) from the Kyoho or Tempo period". These typically range from 5,000 to 15,000 yen, offering an affordable experience of the texture and intriguing mark combinations of silver coins.

Particularly, choosing pieces with clearly identifiable marks of Daikokuten is advisable, as it naturally helps collectors understand the standard for "good marks". While Keicho pieces have a higher entry price, the high-quality and beautiful hue of Kyoho pieces provide a good balance of price and quality suitable for beginners.

Before expanding the collection with multiple pieces, getting accustomed to identifying a genuine item is important. Purchasing from a trusted specialist and learning the basics is the first step for a long and enjoyable collection. The joy of collecting lies in the exploration of the history and stories behind each individual coin.

## Common Mistakes to Avoid and Countermeasures in Collecting

Common pitfalls for beginners collecting Mameitaggin include "misjudging silver content" and "purchasing items with falsified weight." Misidentifying low-content Tempo or Bunsei period Mameitaggin as high-quality Keicho items can lead to price discrepancies of several times. It is important to learn the characteristics of each period, rather than relying on color or mark interpretation.

Weight falsification is difficult to discern in smaller items, where even a 1-2g difference can significantly affect value. Always use a precise scale capable of measuring to 0.01g and verify the weight before purchasing. Additionally, some marked pieces with multiple marks are "altered items," illegally added later.

Altered items can be identified by examining the depth of the marks and observing the texture at the contact points with the copper surface. Attention should be paid to unnatural areas and disproportionate balance with other marks. Initially, purchasing from a reliable specialist and gaining knowledge and experience is the safest countermeasure.

## Optimal Storage Methods for Mameitaggin

As Mameitaggin are made of silver, the main storage challenge is preventing tarnishing by sulfur compounds (silver sulfide formation). Avoid contact with materials containing sulfur, such as newspaper, rubber products, and wool, as they rapidly tarnish silver and cause discoloration.

Ideally, use plastic "coin capsules (airtight)" for individual sealing, and include sulfur-free anti-rust paper to enhance protection. The ideal humidity level is 40-50%, as excessive dryness can lead to surface micro-cracking.

When storing multiple pieces, ensure they do not touch each other directly by placing each in individual capsules or using compartmented cases. If tarnishing occurs, avoid using polish, which can scratch and devalue the surface; instead, consult a professional. For accurate storage methods, refer to [Correct Storage Method of Coins](/coinpedia/basics-006-hokan).