In UNIMARC, if a field contains a $5, it means the information contained in that field is related to a specific items. So this field should be displayed in item detail, not in biblio detail. Citation from the manual http://www.ifla.org/files/assets/uca/unimarc_updates/BIBLIOGRAPHIC/u-b_317_update.pdf "It is expected that the record is made for the ideal copy. However, in this note field provenance of the copy in hand is described in the form in which it appears in the book, e.g. book plates, author's and/or owner's autographs, seals, etc. Code of the institution to which the Provenance Note field applies is recorded in $5." M. Saby