There was no case that Taihei-genpo was found in excavation and research, and only two coins that were handed down in a certain family and Toshodai-ji Temple was in existence in the Taisho period.
太平元宝が発掘調査で見つかった事例はなく、大正時代には某家と唐招提寺に伝わる2品が現存していた。