Two large Chinese characters Wu Zhu, outer rim / Blank, inner and outer rims. 26mm, 3.40 grams. Hartill -; Gratzer/Fishman "One Thousand Years of Wu Zhu Coinage" #2.2.

No historical records state that Wu Zhus were cast during Wang Mang’s reign. However, there are coins that can be attributed to his reign based on scanty archaeological, hoard, and numismatic (stylistic) basis. Some coins are known from the tombs of Wang Mang’s reign containing Wu Zhus or Wu Zhu molds corresponding in shape and size to Daquan Wushi (“value 50” coins cast during Wang Mang’s failed monetary reform of AD 9-14). The calligraphy on these Wu Zhus copies the style of Emperor Zhao Di (86-74 BC) (type B1.41) and Emperor Xuan Di (74-49 BC) (type B1.42). These coins can be distinguished from the originals by their large size, very stout inner rim and large size. The size and weight of the early Da Quan Wu Shi coins were larger than that of the earlier Wu Zhus, and the very large Wu Zhus found along with Wang Mang’s coins are usually attributed to this period. 

Wang Mang (45 BC - 6 October 23 AD), was a Han Dynasty official who seized the throne from the Liu family and founded the Xin (or Hsin, meaning "new") Dynasty, ruling AD 9-23. The Han dynasty was restored after his overthrow and his rule marks the separation between the Western Han Dynasty (before Xin) and Eastern Han Dynasty (after Xin). Some historians have traditionally viewed Wang as a usurper, while others have portrayed him as a visionary and selfless social reformer. Though a learned Confucian scholar who sought to implement the harmonious society he saw in the classics, his efforts ended in chaos. This coin is unconditionally guaranteed to be authentic.