I recently purchased this. It's a 1 peso "United States Armed Forces in the Philippines, in the field, war circulating note" from WW2, dated July 4, 1943. It's 2"x 4.75" and looks to be stamped on tablet paper. I think it's interesting but can't find much on it. The seller's Father was in the navy and said it was payment in the field to the locals who helped our soldiers with odd jobs. Is that true? Did I do good for $20? Any help is appreciated. Thanks.