Rosicrucian vault This likely refers to the "Vault of Christian Rosenkreuz," a legendary symbolic tomb central to the Rosicrucians, a secret mystical society. In this context, it probably indicates that the manuscript was stored in a specific "Rosicrucian" themed collection or library shelf.
10 91 The number 10 is circled in red in the original manuscript, likely representing a series or volume number, followed by the specific item number 91.
Books

17

19

50

96

These numbered entries appear to be a list of other volumes or specific references within a cataloging system, linking this manuscript to items 17, 19, 50, and 96 in the same collection.