Yongtong Huohuo is one of the ancient Chinese coins. It was cast during the reign of Emperor Li Jing (the Middle Sovereign) of the Southern Tang dynasty in the Five Dynasties and Ten Kingdoms period. The clerical-script version of Yongtong Huohuo has both wide-rim and narrow-rim varieties, as well as fine-character and coarse-character varieties. The casting period of Yongtong Huohuo lasted only about half a year, so the original mintage was small, and the surviving quantity today is even smaller.

The Deyi Yuanbao coin is exquisitely cast and extremely rare in excavated finds. Even in Luoyang, it is rarely seen. Among numismatic circles, there is a saying: "Shuntian is easy to obtain, Deyi is hard to seek." This shows its extraordinary rarity. Apart from the variety with a moon pattern on the reverse, all other Deyi Yuanbao are rare, and the variety with four moons on the reverse is considered a great treasure of ancient coinage.

A Tianqi Tongbao coin in seal script, value zhe san (three cash), was cast by the late-Yuan rebel leader Xu Shouhui during his Tianqi reign period (1358 CE). It has a diameter of 3.15 cm and weighs 7.35 g. To avoid confusion with the Ming Dynasty Tianqi Tongbao, scholars commonly call it "Xu Tianqi" (Xu’s Tianqi). The face value is zhe san. The coin exists in both regular-script and seal-script paired versions. This is the seal-script version, with the obverse inscription "Tianqi Tongbao" read in cross pattern, and a plain reverse. Compared to the regular-script version, the seal-script version is even rarer. The coin is exceptionally well-cast, with crisp, high-relief characters, a natural and archaic patina, and superb preservation. Because the Tianqi reign period lasted only eight months, most coins were recalled after the regime fell. Thus, surviving examples are extremely rare. It is a first-grade treasure among ancient coins, with only four known specimens to date, and is listed as one of the Fifty Rarest Treasures of Chinese Ancient Coinage.

Cast during the Tianqing reign of Emperor Yelü Yanxi of the Liao Dynasty (1111–1120 CE). Because Liao dynasty coins were minted in small quantities and their circulation was limited to northern China, they have always been a focus of coin collectors and constitute the largest number of coins among the Fifty Rarest Treasures of Ancient Chinese Coins. There is a plain-back small-sized coin, rarely seen today. Additionally, there is a "Da Liao Tian Qing" large ten-cash coin, exquisitely made, with only two extant specimens, making it priceless and extremely rare.

Zhou Yuan Tongbao is a currency from the Five Dynasties and Ten Kingdoms period. It was first cast in the second year of the Xiande reign of Emperor Shizong of the Later Zhou dynasty (955 CE). Emperor Chai Rong, after ascending the throne, ordered the destruction of Buddhist temples to melt down bronze statues to cast "Zhou Yuan Tongbao" in order to raise military funds and pacify the people. As a type of "temple-destruction coin," Zhou Yuan Tongbao has had a profound and significant impact on both the history of Chinese coinage and the history of religion.

The Zhizheng Zhi Bao coin with reverse inscription "Ji" and value "Quanchao Wu Qian" is a relatively large coin, the largest among the "quanchao" (weight-in-cash) coins, measuring 8 cm in diameter and weighing approximately 120 g. It is the largest circulating square-holed round coin ever produced in history. During the casting process of many five-coin pieces, there are often casting shifts on the reverse or obverse, making regular specimens very rare. Overall, the Zhizheng Zhi Bao reverse Ji Quanchao Wu Qian is quite scarce and holds high collectible value.

In the 18th year of the Zhizheng reign of the Yuan dynasty, Xu Shouhui changed his reign title to Tianqi and cast Tianqi Tongbao coins. These come in three sizes: large, medium, and small, corresponding to Zhe San (three-cash), Zhe Er (two-cash), and Xiaoping (small flat) denominations. Among these, the Zhe San Tianqi Tongbao exists in both seal-script and regular-script versions. The regular-script version is rare, and a fine example is difficult to find. The seal-script version is even more renowned in numismatic circles, being of a trial-casting nature among Xu Tianqi coins. Only a few specimens are known to date, truly worthy of being listed among the Fifty Rarest Treasures of Ancient Chinese Coins.

Chongning Tongbao was first cast during the Chongning reign of Emperor Huizong Zhao Ji of the Northern Song dynasty (1102–1106 CE), a reign-title coin. There are three types: Chongning Tongbao, Chongning Zhongbao, and Chongning Yuanbao. The Chongning Tongbao ten-cash type has its coin inscription in the Slim Gold style personally written by Emperor Huizong, thus it is also known as an "imperial calligraphy coin."

During the Chunxi reign of Emperor Xiaozong of the Southern Song dynasty, Chunxi Yuanbao coins were cast. Reverse inscriptions indicate the year, starting from the seventh year and continuing until the sixteenth year. Both small flat and two-cash denominations exist. Among iron coins, there are both Tongbao and Yuanbao types, with the reverse additionally bearing mint names, such as "Chun" and "Song". It is very difficult for collectors to obtain complete sets. This coin features a wide central hole and slender characters. It came from an iron mint, with reverse inscriptions "Chun" above and "Shi" below, meaning it was cast in the tenth year at the Qichun Mint. Iron coins are already rare to see, and copper mother coins are even more precious. When Yang Chengqi first obtained this coin, he disliked its rough reverse and did not value it highly. Mu Yuan then exchanged it for a Xuantong Treasure coin. Now, silver coins have soared in value while ancient coins remain neglected, a striking contrast between past and present.

A late Yuan dynasty coin. In the 20th year of the Zhizheng reign (1360 CE), the rebel leader Chen Youliang killed his superior Xu Shouhui and declared himself emperor in Wuchang, Hubei Province. He named his state "Han" and changed the reign title to "Dayi," casting Dayi Tongbao coins. Following the coin system of Tianqi and Tianding, there are three denominations: Xiaoping (small flat), Zhe Er (two-cash), and Zhe San (three-cash). The bronze has a reddish-brown color, and the workmanship is somewhat inferior. Among numismatic circles, there is a saying: "Exquisite Tianding, crude Dayi." The four characters "Dayi Tongbao" are in regular script, read straight, with a plain reverse. Their diameters are 2.3 cm, 2.7 cm, and 3.1 cm respectively, with regular specifications, but slightly smaller than Tianqi and Tianding coins. Surviving examples are relatively few.

The "Dazhong Tongbao" coin was cast by Ming Taizu Zhu Yuanzhang when he was still known as the Prince of Wu before founding the Ming dynasty (1361–1367 CE) at Yingtian Prefecture (present-day Nanjing). This coin is a large-sized small flat (Xiaoping) coin with the character "Ji" on the reverse above the hole. It is extremely rare in the world and ranks among the famous treasures of Chinese coinage.

In the first year of the Hongwu reign of Emperor Taizu Zhu Yuanzhang of the Ming dynasty (1368 CE), he ordered the Baoyuan Bureau of the Ministry of Works in the capital (Nanjing) and the Baoquan Bureaus in various provinces to cast "Hongwu Tongbao" coins. The Ministry of Works was in charge of minting, with the Baoyuan Bureau established under it. According to the "Treatise on Food and Goods" in the History of the Ming: "After ascending the throne, the emperor issued Hongwu Tongbao coins in five grades: ten-cash, five-cash, three-cash, two-cash, and one-cash. The ten-cash coin weighed one liang, decreasing step by step to one qian for the one-cash coin." The inscription is in regular script, read straight. The ten-cash large coin typically measures 4.6 cm in diameter and weighs 34.4–37 g; the one-cash coin measures 2.45 cm in diameter and weighs 3.4–3.6 g. According to research by Mr. Zhou Xinguo, a member of the China Collectors Association in Changde, Hunan, in his "Wuling Treasure Collection": In the first month of the second year of the Wu era (1368 CE), Zhu Yuanzhang declared himself emperor, established the Ming dynasty, and changed the reign title to Hongwu. In the third month of the same year, he began casting "Hongwu Tongbao" coins, continuing the Dazhong coin system with five denominations.

A rare variety among the coins cast by the various rebel groups in the late Yuan dynasty. In the 15th year of the Zhizheng reign of the Yuan dynasty (1355 CE), Han Lin'er, a leader of the Red Turban Rebellion, ascended the throne with the support of Liu Futong, proclaiming himself the Lesser King of Ming. He established his capital at Bozhou (present-day Bozhou, Anhui), founded the state named Great Song, adopted the reign title Longfeng (Dragon-Phoenix), and cast Longfeng Tongbao coins. The obverse inscription in regular script reads "Longfeng Tongbao," read vertically from top to bottom and right to left. The last stroke of the character "Long" (dragon) is intentionally shortened, and there is a small dot beneath the character "Feng" (phoenix). The calligraphy is dignified. The reverse is plain without any inscription. The bronze has a golden-red color, the coin body is simple and robust, and the characters are powerful and elegant. Denominations include Xiaoping (small flat), Zhe Er (two-cash), and Zhe San (three-cash). Longfeng Tongbao is relatively rare in surviving examples, a rare variety among late Yuan rebel coinage, with only sporadic unearthed specimens. It holds high market value and investment potential.

In the first year of the Tianqi reign of Emperor Xizong of the Ming dynasty (1621 CE), after the supplementary casting of "Taichang Tongbao" was completed in August, the casting of Tianqi Tongbao began. Initially, small flat coins were cast. In July of the second year of Tianqi (1622 CE), ten-cash large coins were cast. In October of the fifth year of Tianqi (1625 CE), due to excessive numbers of large coins—both official and private—being too numerous and of poor quality, the minting was ordered to stop. The government used silver to buy back the ten-cash coins, so the casting period for the large coins lasted no more than three years. Among the complex variety of reverse inscriptions on Tianqi Tongbao, there is a large ten-cash coin with the reverse character "Fu" (meaning "prefecture"). According to research, "Fu" refers to Xuanfu (present-day Xuanhua, Hebei), known as the First Prefecture west of Beijing. Historical records indicate that during the Ming dynasty, the Ministry of Revenue established a central mint in Xuanfu to cast coins, which was later discontinued for various reasons. Thus, the coin with reverse "Fu" refers to coinage produced by the Xuanfu Mint.

Yongzheng Tongbao is a Qing dynasty coin, cast in brass with fine workmanship. It is now part of the Five Emperor Coins; in the five-element theory, it belongs to earth and is believed to have the power to ward off evil spirits. Casting began in the first year of the Yongzheng reign (1723 CE), making it the third Qing dynasty coin after Shunzhi and Kangxi. The coin inscription of Yongzheng Tongbao has epoch-making significance, establishing the style of Qing dynasty coin inscriptions for the subsequent 180 years. Among Qing dynasty coins, it is the type with the smallest relative quantity and the simplest variety. However, due to its regularity, precision, relatively large diameter, exquisite workmanship, and uniform, neat characters, it is highly beloved by collectors.

One of the ancient Chinese coins. Cast during the Tianding reign (1359–1360 CE) by the late Yuan rebel leader Xu Shouhui after he moved his capital to Jiangzhou and changed his reign title. The casting is relatively exquisite, giving rise to the numismatic saying: "Exquisite Tianding, crude Dayi."

Zhang Shicheng's "Tianyou Tongbao" is one of the ancient Chinese coins, cast by the late Yuan rebel leader Zhang Shicheng. There are four denominations: Xiaoping (small flat), Zhe Er (two-cash), Zhe San (three-cash), and Zhe Wu (five-cash). The inscriptions are read straight, in regular script, with plain reverses. Among them, the Xiaoping coin bears one character on the reverse, the Zhe Er bears "Er" (two), the Zhe San bears "San" (three), and the Zhe Wu bears "Wu" (five). Because the circulation period was short, the circulation area was narrow, and the surviving quantity is small, these coins are relatively exquisite and thus hold high economic value.

Zhizheng Tongbao is a circulating currency from the late Yuan dynasty during the Zhizheng reign (1341–1368 CE). In the late Yuan period, political corruption, economic chaos, and widespread suffering led the government to cast large quantities of Zhizheng Tongbao and put them into circulation in an attempt to stabilize the economy. The appearance of this coin brought some order to the monetary chaos of the time and became an important economic credential of that turbulent era. As a currency of the late Yuan dynasty, Zhizheng Tongbao holds unique numismatic value. It occupies a pivotal place in history, witnessing the political, economic, and cultural developments of the late Yuan period. In the collector's market, the price of Zhizheng Tongbao has risen year by year. Currently, a well-preserved Zhizheng Tongbao can command a market value of hundreds of thousands or even millions of RMB. Despite its high price, the number of surviving Zhizheng Tongbao coins is extremely limited, making them highly sought after by collectors.