Keywords: USS Pigeon;110204710.jpg The U S Navy minesweeper USS Pigeon AM-47 in Chinese waters circa the later 1920s showing modifications made to fit her as a gunboat for use on the Yangtze River Official U S Navy photo https //www history navy mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-85000/NH-85732 html NH 85732 from the U S Navy http //www history navy mil Naval History and Heritage Command s 1920 U S Navy PD-USGov-Military-Navy en USS Pigeon ASR-6 USS Pigeon ASR-6 Yangtze River Patrol |