Putting six copper coins at home is often not for appreciation, but for:
1 to ward off evil spirits
2. For good luck
Therefore, it is necessary to choose the year of coinage, which is more prosperous, full of yang and healthy. Compared with Kangxi Qianlong, Xianfeng is much inferior. At this time, the Qing dynasty began to decline.
Of course, if we consider six pieces from different eras, Shunzhi Bao Tong, Kangxi, Yongzheng, Qianlong, Jiaqing and Daoguang are the best.
If it is a collection, the more the better, the rarer the more expensive.