Reuss received letters-patent as a Sovereign Grand Inspector General 33° of the Cernau Scottish Rite from Yarker dated September 24, 1902. According to a published transcript, Yarker issued on the same date a warrant to Reuss, Franz Hartmann and Henry Klein to operate a Sovereign Sanctuary 33°-95° of the Scottish, Memphis and Mizraim rites. Yarker issued a second charter confirming Reuss's authority to operate said rites on July 1, 1904; and Reuss published a transcript of an additional confirming charter dated June 24, 1905. Reuss commenced publication of a masonic journal, The Oriflamme, in 1902.

    These rites, along with the Swedenborgian Rite, were adopted as integral elements within the overall scheme of the Order. The Swedenborgian Rite included a version of the Craft degrees, and the Cernau Scottish Rite and the Rites of Memphis and Mizraim provided a selection of the workable "high grades" as nearly complete as had ever existed. Together, they provided a complete system of Masonic initiation at the disposal of the Order. With the incorporation of these rites, the Order was enabled to operate as a completely independent Masonic system. Reuss and Kellner together prepared a brief manifesto for their Order in 1903, which was published the next year in The Oriflamme. Kellner died on June 7, 1905, and Reuss assumed full control of the Order. With the assistance of co-founders Franz Hartmann and Heinrich Klein, Reuss prepared a Constitution for the Order in 1906.