According to the information you provided, "Kangyin of the Qing Dynasty" refers to the silver ingots issued during the Kangxi period of the Qing Dynasty (1662-1722). The Kangxi period was one of the heydays of the Qing Dynasty. The silver ingots of this period were exquisitely crafted and of high collection value.

According to historical records, a variety of silver ingots were issued during the Kangxi period, the most common of which were "Kangxi Yuanbao of the Qing Dynasty" and "Kangxi Yuanbao". The diameter of Daqing Kangyin is generally between 2.5-2.8 cm, and the weight is between 7-10 grams. Its market price ranges from hundreds to thousands of yuan. The specific price depends on the appearance, weight, and collection of the specific ingot. value and other factors.