File:IL-rock-island-courthouse.jpg

Description: Court house of Rock Island, Illinois Date: Before 1910 Source: Historic postcard in Wikimedia Commons at http://commons.wikimedia.org/wiki/File:Court_house_rock_island_IL_postcard.jpg Author: Unknown Permission: WikiMedia Commons License: This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923