“The Civil War memorial secretary was widely embraced as a folk art treasure. Fashioned from walnut, maple and oak, it was said to have been created circa 1876 to honor John Bingham, a Union infantryman who had fallen at Antietam. … The Wadsworth Atheneum in Hartford purchased the work and gave it prominent display.” Until last year, that is. And now the forger has (proudly) confessed.