Right after the bombing of Pearl Harbor, the Japanese invaded the Philppines. Many citizens took to the hills to continue the fight againt the occupying forces, and rather that use the money introduced by the Japanese, printed their own currency. Because of the scarcity of materials, these notes were printed on any kind of paper available, in many cases from brown paper bags, which accounts for the poor condition of most surviving notes. At the time, the penalty for being caught with guerrilla currency was execution! The notes in the image and the ones you are bidding on are all authentic pieces of World War II memorabilia. Because I have a few sets of these notes, the ones you will receive will be similar to but not the same notes that are pictured.