序近来,中国很注重半两、五铢钱的研究。1988年秋,中国钱币学会还同陕西分会一起召开了上林苑铸钱遗址学术讨论会,对郡国五铢、赤仄五铢、三官五铢的断代问题进行了讨论。我在去年曾就近年来一些重要的发掘结果发表过一些看法,这些看法与日本过去的观点也有所不同。为此次访华,在这里再陈述一点管见。众所周知,在《洛阳烧沟汉墓》中,包括了从前汉到后汉的五铢钱,该书将前汉五铢分为二期,以Ⅰ型、Ⅱ型分类。Ⅰ型从初期五铢到三官五铢,Ⅱ型从宣帝五铢到西汉末。然而,从发表的Ⅰ型拓片来看,在日本是全都算作三官五铢的(图1),而在日本钱币 Recently, China paid much attention to the research of half and two baht. In the autumn of 1988, the Chinese Numismatic Institute also held a symposium with the Shaanxi Branch on the Shanglin Yuan Casting Ruins. The discussion on the dating of five baht, five chek and five bahts in the country was discussed. Last year, I made some observations on some important findings in recent years. These views differ from those of Japan in the past. For this visit to China, here to state a little bit of opinion. As we all know, “Luoyang burning ditch Han Tomb”, including the former Han to the post-Han five baht money, the book will be divided into two parts of the former five baht, Ⅰ type, Ⅱ type classification. Type Ⅰ from the initial five baht to three official five baht, type Ⅱ from Xuanwu five baht to the end of the Western Han Dynasty. However, from the published type I rubbings, all are counted as three official five baht in Japan (Figure 1), while in Japanese coins