gfb bf1575 m66

This is also an archival or catalog designation, not a clearly identified book title, so its subject matter cannot be determined with confidence. If it belongs to an occult collection, it likely functions as a library entry rather than a self-contained historical or doctrinal work.

Works whose authorship is unknown, unattributed, or pseudonymous. This is a standardized placeholder that consolidates anonymous attributions across languages (Anónimo, Anonyme, Аноним, Unknown, and others). The original source attribution for each text is preserved with the individual work.