The crest of the Aizen-en, the Divine Toyo (Ten-Luminary or Ten-Sphere) Flag dates back to the period of Omoto's history where the denomination was operated under the title of Kodo Omoto.
For details, see the Overview, Volume 13 or Chapter 18, Volume 78 of the Reikai Monogatari.
The Divine Toyo Flag
The Divine Flag whipping in the wind behind Onisaburo at a
believer's residence in Ishikawa (July, 1926)