This is the "book plate" page from "Dorothy and the Wizard in Oz", published in 1908. The illustration was by John R. Neill. This copy came from the Internet Archive's PDF copy, which can be seen here:
http://www.archive.org/details/dorothywizardino00baum2
This is clipart converted and broken apart that has been released into the public domain because the document says so, and its from NASA, a USA government agency. The publication is called "The Brain in Space:"
http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/The.Brain.in.Space.html