But considering the fact that Ryoma once became president of the disciples of the Chiba dojo and that his contemporaries testified to the fact that Ryoma was conferred the full mastership, the certificate of the full mastership actually conferred upon him is thought to be no longer exist (some of the personal mementos left by Ryoma have been lost by disaster or theft).
ただ千葉道場で塾頭を勤めたことや同世代の人物の証言に「免許皆伝を伝授された」という証言も残るため、免許皆伝状は単に現存していないものと思われる（龍馬の遺品は災害や盗難等で幾つか損失している）。