A proposed icon for Wikibooks indicating a non copyright-infringing cover is needed.
File:Wikipedia-books-missing-cover.svg, which was based on Wikibooks_misscover.svg
Wikibooks_misscover.svg: *Gray_book.png: gingercoons
PD-icon.svg: Various. See log. (Original SVG was based on File:PD-icon.png by Duesentrieb, which was based on Image:Red copyright.png by Rfl.)
derivative work: Jon C (talk)
derivative work: Jon C (talk)