I restrained myself in the past because I’m not at all knowledgeable, while there are many fakes around. But the O.N.S. (old-fashioned website) is a serious society counting many renowned experts under its members, several of whom looked at the coins with their own eyes, and on the website (Zeno). I've been a member for ages. So I think I’m as safe as may be hoped for in this. In all I bought eight Chinese coins (not counting a 1909 Kiautschou coin - because of its historical interest, which was a mistake by overenthusiasm). Here are the first that I incorporated in my system today. It maybe was the word ‘biscuit’ in the description that first attracted my interest (two minutes before the actual auction) and then I decided on the spot that I was going to buy a few Chinese cash coins. China. Xin Dynasty, heavy Huo Quan coin, AD 7-23. Xin Dynasty, A very thick (併 bing) and heavy Huo Quan coin (13.23 g.). Obv.: 貨 泉 Huo Quan. Rev. Rims only. 26 mm. 13.28 gr. Zeno 213674. Hartill 9.60. The background of these "biscuit" Huo Quans is unknown. It doesn't look like a biscuit though, wrong color and all. But it's quite thick. This one is more like a classical Chinese cash coin: China, Xin Dynasty, Wang Mang's interregnum, 新AD 9-14, Da Quan Wu Shi (6.11 g.), value 50. Rev. Rims only. 27.5 mm, 6.14 g. Zeno 221539. Hartill 9.1. And isn't this a beauty, from the middle of the emperor Lingdi's reign (and Commodus's, for your perspective): China. Eastern Han Dynasty. Emperor Lingdi (AD 186). Si Chu (four corners) Wu Zhu with four lines on the reverse. 25 mm, 4.04 gr. Zeno 228589. Hartill 10.3; FD 512.