There are clear instructions in RDA Toolkit for using “Relationship designators for related items” (J.5). So a facsimile of a manuscript would get something like this:


710 2# $i Facsimile of (item): $a BibliotheÌque nationale de France. $k Manuscript. $n Musique Ms. 117.


But when a MARC bib record describes a work or expression contained in a manuscript (i.e., cataloging a specific manuscript),  what would be the appropriate designator for the added entry of the manuscript itself?


710 2# $i Contained in (item): $a [Holding institution]. $k Manuscript. $n [Manuscript name/number]?




P.S. Per AMREMM guidelines (Descriptive Cataloging of Ancient, Medieval, Renaissance, and Early Modern Manuscripts, page 80), “manuscripts usually possess two uniform titles, one for the work contained in the manuscript and one for the manuscript itself as a physical entity.”