1. The type of abbreviation (for use with extension tags)

<abbr type=“brevigraph”></abbr> , <abbr type=“contraction”></abbr>


2. Abbreviation names for common abbreviations (also for use with extension tags)

<abbr type=“brevigraph”><g ref=“#per”>per</g></abbr>


3. Line breaks that divide one word between two lines of text

<lb type=“worddiv”/>


4. Library/archive marginalia (page numbers, etc.)

<additions></additions>, or <foliation></foliation>


5. Corrections (by the scribe, such as insertions)