Used to seal envelopes, these 'wafer seals' would have made plain the sender's feelings on the war. Some, such as 'Eternal Vigilance is the Watch Word of Liberty' and 'The Eyes of the World are Upon Us' are overtly patriotic but not overtly hostile. Others, such as 'The Union Must and Shall Be Preserved', 'Strike for the Government and the Union', and 'Let Us Die for Our Country Never Surrender' evoke the hostilities engulfing the country. Stamps reading 'Glory Shrouds the Heroes Grave', and 'He That Falls in His Country's Cause Dies Nobly' remember the dead. Some are even illustrated. One stamp reads 'The Traitors Doom' around an illustration of a corpse hanging from the gallows. An illustration of a snake appears on another with the text 'Crush the Serpent of Rebellion'. Three bear illustrations of the Stars and Stripes. One reads 'Remember Fort Sumter'. The second states 'Wipe Out the Insults Heaped Upon Me' around an illustration of the flag, while the third has two flags and reads' Oh Long May It Wave'.