A compelling pair of uniquely postmarked US history cards: (1) 1907 Private Mailing Card (PMC): Features the Battle Ground Monument in Stillman Valley, Illinois, commemorating the 1832 Battle of Stillman's Run (Black Hawk War). Postmarked from Stillman Valley in 1907 with a green 1-cent Benjamin Franklin stamp | (2) 1941 WWII Comic Card: A colorful Exhibit Supply Co. military humor postcard titled "Would you care to step inside and wait?" featuring a soldier and a lady by a telephone booth. Postmarked from Rockford, Illinois, in 1943 with handwritten correspondence.