<objectIdentifier>

<objectIdentifier> (object identifier) groups one or more identifiers or pieces of locating information concerning a single object. [13.3.5 Objects]
Module namesdates — Names, Dates, People, and Places
Attributes att.global (@xml:id, @n, @xml:lang, @xml:base, @xml:space) (att.global.rendition (@rend, @style, @rendition)) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) (att.global.responsibility (@cert, @resp)) (att.global.source (@source))
Member of
model.biblPart
Contained by
core: bibl
namesdates: object
May contain
core: address
header: idno
msdescription: altIdentifier collection institution msName repository
namesdates: bloc country district geogName objectName placeName region settlement
Example
<objectIdentifier>
 <country>United Kingdom</country>
 <region>Oxfordshire</region>
 <settlement>Oxford</settlement>
 <institution>University of Oxford</institution>
 <repository>Ashmolean Museum</repository>
 <collection>English Treasures</collection>
 <idno type="ashmolean">AN1836p.135.371</idno>
 <idno type="wikipedia">https://en.wikipedia.org/wiki/Alfred_Jewel</idno>
 <objectName>Alfred Jewel</objectName>
</objectIdentifier>
Example
<object xml:id="Excalibur-MultipleNames">
 <objectIdentifier>
  <objectName type="main">Excalibur</objectName>
  <objectName type="alt">Caliburn</objectName>
  <objectName xml:lang="cy">Caledfwlch</objectName>
  <objectName xml:lang="cnx">Calesvol</objectName>
  <objectName xml:lang="br">Kaledvoulc'h</objectName>
  <objectName xml:lang="la">Caliburnus</objectName>
  <country>Wales</country>
 </objectIdentifier>
 <p>Excalibur is the name for the legendary sword of King Arthur, in Welsh it is called Caledfwlch,
   in Cornish it is called Calesvol, in Breton it is called Kaledvoulc'h, and in Latin it is called Caliburnus.
   In some versions Excalibur's blade was engraved with phrases on opposite sides which in translation read:
   "Take me up" and "Cast me away" (or similar).</p>
</object>
Content model 
<content>
 <alternate minOccurs="1"
  maxOccurs="unbounded">
  <classRef key="model.placeNamePart"/>
  <elementRef key="institution"/>
  <elementRef key="repository"/>
  <elementRef key="collection"/>
  <elementRef key="idno"/>
  <elementRef key="msName"/>
  <elementRef key="objectName"/>
  <elementRef key="altIdentifier"/>
  <elementRef key="address"/>
 </alternate>
</content>
Schema Declaration 
<rng:element name="objectIdentifier">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:oneOrMore>
  <rng:choice>
   <rng:ref name="model.placeNamePart"/>
   <rng:ref name="institution"/>
   <rng:ref name="repository"/>
   <rng:ref name="collection"/>
   <rng:ref name="idno"/>
   <rng:ref name="msName"/>
   <rng:ref name="objectName"/>
   <rng:ref name="altIdentifier"/>
   <rng:ref name="address"/>
  </rng:choice>
 </rng:oneOrMore>
</rng:element>
element objectIdentifier
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   (
      model.placeNamePart
    | institution
    | repository
    | collection
    | idno
    | msName
    | objectName
    | altIdentifier
    | address
   )+
}