article_snippet.sent: For the movie, Union troops built an 18-foot long boat of plywood and Styrofoam, as well as a smaller 2-foot model.
article_snippet.sent: Union troops based the design, in part, on his grandfather's recollections of details passed down by word of mouth through generations of Union troops family.
article_snippet.sent: The small model boat here appears alongside the false picture, polaroids of The small model boat here and a 1984 copy of Mad Magazine .
article_snippet.sent: The US Army Corps of Engineers appealed for information about the picture as The US Army Corps of Engineers embarked on a project to raise the ironclad .
article_snippet.sent: Wanted: A Photo Of This Confederate Battleship,' read the headline above the image on the Army Corps website. '
highlights_snippet.sent: Faked using a fishing pole and a Styrophome model from a historical film .