Keizai ruins - Kaidai ruins

...However, at the Higashinara site in Ibaraki City, Osaka Prefecture, more than nine pieces from the ancient to middle stages have been found, indicating that this was one of the centers for bronze bell casting. At the Kaide site in Muko City, Kyoto Prefecture, molds from the earliest or early ancient stages were found along with Yayoi pottery from Phase I (early) and Phase II (early middle), suggesting that bronze bell casting may date back to Phase II at the latest. The molds from the earliest and oldest stages were made of stone, and it is known that up to five sister bronze bells (same-shaped bronze bells) from the same mold were cast for the ancient bronze bells. ...

*Some of the terminology that refers to the Keizui Ruins is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…しかし，大阪府茨木市の東奈良遺跡では，古～中段階の9個体分以上が見つかっており，銅鐸鋳造のセンターの一つがここにあったことがわかる。京都府向日市鶏冠井（かいで）遺跡では，最古段階か古段階初めの鋳型が，I期(前期)，II期(中期初め)の弥生土器と伴出し，銅鐸鋳造の年代がおそくもII期にさかのぼる可能性を示している。最古･古段階の鋳型は石製であって，古段階の銅鐸には同一の鋳型から最高5個までの兄弟銅鐸(同笵（どうはん）銅鐸)が鋳造されたことが知られている。…

※「鶏冠井遺跡」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報