SoVertexProperty(3) on Linux
The text c81fdb3f7f1a, as Debian 7 (Wheezy) shipped it.
The SoVertexProperty class collects the functionality of various appearance nodes. Instead of reading data from the current state stack of the scenegraph traversal, nodes inheriting SoVertexShape can be set up with an SoVertexProperty node in the SoVertexShape::vertexProperty field. Coordinates, normals, texture coordinates and material / color information will then be fetched from the vertexshape's SoVertexProperty node instead of from the state stack.