Under the title 'Bij de Plattegrond van het Paleis', you can read back (in Dutch only) detailed notes taken from a conversation that took place here between one of the palatial visitors and the Initiator in the Vestibule of Principles & Rationale. This 32 page publication is literally a blueprint: the design is derived from the basic design of the Russian Library (Van Oorschot Publishers) by Helmut Salden (1910-1996). the booklet is sent in an offset printed envelope with the colophon.