This is the {{Auto archiving notice}} message box. It should be used on pages that are automatically archived.

When this box is placed on a subject page (not a talk page), it gets the light-grey "other pages" style. Like this:

{{auto archiving notice|bot=MiszaBot I}}

This box automatically adapts its styles depending on what kind of page it is placed on. Thus when it for instance is placed on a talk page it gets the brown talk page style. See next example.

The "small=yes" parameter works on talk pages and "other" pages. That is, it doesn't work on articles, file and category pages. But the parameter does no harm if used on such pages. So you can make the box small and right floating if you like. Like this:

{{auto archiving notice|bot=MiszaBot I|age=30|small=yes}}
{{Auto archiving notice
| age         = <!-- default=7 -->
| bot         =
| botlink     =
| dounreplied =
| index       =
| page        =
| small       =
| target      =
| units       = <!-- default=days -->
}}

Here are some other parameter combinations:

{{auto archiving notice|bot=MiszaBot I|age=30}}
{{auto archiving notice|bot=MiszaBot I|age=2|units=weeks}}
{{auto archiving notice|bot=MiszaBot I|botlink=User:MiszaBot I}}
{{auto archiving notice|bot=MiszaBot I|dounreplied=yes|page=This noticeboard}}
{{auto archiving notice|bot=MiszaBot I|dounreplied=no}}
{{auto archiving notice|bot=MiszaBot I|index=/Archive Index|target={{#rel2abs:./Archive}}}}