<supplied>

<supplied> signifies text supplied by the transcriber or editor for any reason, typically because the original cannot be read because of physical damage or loss to the original. 11.5.1 Damage, Illegibility, and Supplied Text
Module transcr — 11 Representation of Primary Sources
In addition to global attributes att.editLike (@evidence, @source) (att.dimensions (@unit, @quantity, @extent, @precision, @scope) (att.ranging (@atLeast, @atMost, @min, @max)) ) (att.responsibility (@cert, @resp))
reason indicates why the text has had to be supplied.
Status Optional
Datatype 1–∞ occurrences of 

<rng:ref name="data.word"/>
data.word
separated by whitespace
Values any phrase describing the difficulty, e.g. overbinding, faded ink, lost folio, omitted in original.
Used by
May contain
Declaration

<rng:element name="supplied">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.editLike.attributes"/>
 <rng:ref name="att.dimensions.attributes"/>
 <rng:ref name="att.ranging.attributes"/>
 <rng:ref name="att.responsibility.attributes"/>
 <rng:optional>
  <rng:attribute name="reason">
   <rng:list>
    <rng:ref name="data.word"/>
    <rng:zeroOrMore>
     <rng:ref name="data.word"/>
    </rng:zeroOrMore>
   </rng:list>
  </rng:attribute>
 </rng:optional>
 <rng:ref name="macro.paraContent"/>
</rng:element>
element supplied
{
   att.global.attributes,
   att.editLike.attributes,
   att.dimensions.attributes,
   att.ranging.attributes,
   att.responsibility.attributes,
   attribute reason { list { data.word, data.word* } }?,
   macro.paraContent
}
Example
I am dr Sr yr
<supplied reason="illegible" source="#amanuensis_copy">very humble Servt</supplied>
Sydney Smith
Note
The damage, gap, del, unclear and supplied elements may be closely allied in use. See section 11.5.2 Use of the <gap>, <del>, <damage>, <unclear>, and <supplied> Elements in Combination for discussion of which element is appropriate for which circumstance.