The Extent Specification within the File Description (//fileDesc/extent)
An <extent>
element within the File Description is used to specify the extent of the DTA full text. The extent is given in several <measure>
elements in different units (facsimile files, tokens, types, characters).
<extent> <measure type="images">[extent: number of facsimile files]</measure> <measure type="tokens">[extent: number of tokens]</measure> <measure type="types">[extent: number of types]</measure> <measure type="characters">[extent: number of characters]</measure> </extent>