I am writing the first book from the American point of view about 19th century rotunda panoramas.These were the biggest paintings in the world,50 x 400=20,000 square feet, housed in their own rotundas which were 16-sided polygons.Chicago in 1893 had 6 panorama companies and 6 panorama rotundas.At hand are the corporation papers for the American Panorama Company (BATTLE OF GETTYSBURG by Paul Philippoteaux, made in Paris and installed at present 700 S. Wabash Avenue in October 1883. The stockholders are listed, and I seek their biographies:Joseph E.Mrks,5 shares @ $500,American Panorama Company. I have much info to share.