The ship actually existed (tough your photos were GIs) but it was a flim prop, not actual combat unit. It was used in some chinese film (i cannot recall its name) but confused western naval circles back in the 80's and was tought to be a real thing. It got NATOs reporting name Hola and was covered in several publications...including Conway's all the world fighting ships 1946-1995. It was belived to be enlargened Osa class....