In 1827, Hozen EIRAKU the 11th was invited to the opening ceremony of oniwa-yaki (which literally means "ware of honorable park", representing a lord's private kiln or ware made at a lord's private factory) held at the Nishihama Goten Palace, which was the second house of Harutomi TOKUGAWA, who was the 10th lord of the Kishu Domain, and he was presented with a gold seal of '河濱支流' (pronounced as kahinshiryu, which literally means "a riverside of the Yellow River and a tributary of the river", and this term was derived from the old Chinese tale that the ancient Chinese leader named Shun made durable ware at a riverside of the Yellow River) and a silver seal of '永樂' (Eiraku) in praise of his great works.
十一代永樂保全は1827年に、紀州藩十代藩主徳川治寶の別邸西浜御殿の御庭焼開窯に招かれ、作品を賞して「河濱支流（かひんしりゅう）」の金印「永樂」の銀印を拝領した。