doi:10.7916/d8-c862-sw64[Two envelopes with Civil War-era cartoons printed on them]ephemerastill imageUnited States--History--Civil War, 1861-1865--Caricatures and cartoons.One envelope has images of a flag and a man strangling a snake with 'secession' written on it. The second has a image of Union Soldiers standing next to an American flag and a hanged man identified as Jefferson Davis