Skin:Standard

Standard (aka. Classic) was one of the skins orignally bundled with MediaWiki by default.

Before the introduction of MonoBook in 2004, "Classic" was the default skin for Wikimedia Foundation wikis.

The skin was based on the SkinLegacy class and resembled the look of the Phase II software.

It was removed in  along with Skin:Simple, Skin:Chick and Skin:MySkin  and is not compatible with MediaWiki 1.25 and higher.