"Japanese Government Five Centavos" – Do They Exist?

No. The Japanese government never issued a five-centavo coin. The centavo was a subunit of the Philippine peso. During the U.S. administration (1903–1945) and the Japanese occupation (1942–1945), the Philippines minted 5-centavo coins (some bearing "United States of America" or Japanese-era markings). Any coin labeled "Japanese Government Five Centavos" is either a misidentified Philippine issue or a fantasy piece. It holds no official monetary value; collector value depends on actual origin, condition, and rarity.