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Kohitsugire are ancient paper sheets with elegant calligraphy. They were originally leaves of ancient manuscripts written mainly from the 8th to the 15th century. Old manuscripts are rarely discovered as complete books; therefore, kohitsugire can be significant materials for historical studies if the written ages or the calligraphists or both are clarified. Most of kohitsugire have kiwamefuda certificates which identify the calligraphists. It is also a clue about the written age. In this study, we determined the written ages of three kohitsugire (Kasuga-gire traditionally attributed to Taira no Norikane, Miwa-gire attributed to Shunkan, Saigu-no-nyogo-kashugire attributed to Fujiwara no Yukiyoshi) from radiocarbon dating, calligaphical investigation and the kiwamefuda. Comparison of radiocarbon age and the calligraphical feature of each kohitsugire gave fair agreement. The result was, however, in obvious conflict with the age of the calligraphist noted on the kiwamefuda, and showed the doubtful reliability of kiwamefuda.
第18回名古屋大学年代測定総合研究センターシンポジウム平成17(2005)年度報告 Proceedings of the 18th symposiumon on Chronological Studies at the Nagoya University Center for Chronological Research\in 2005 日時:平成18 (2006)年1月17日(火)､18日(水) 会場:名古屋大学シンポジオン Date:Januaryl7th and 18th, 2006 Venue:Nagoya Uhiversity Symposion Hall
名古屋大学加速器質量分析計業績報告書 17 135-140, 2006-03