Research and Photos Provided by Richard Thomas. Illinois Bunn SpecialSerial #1256308Image Courtesy of Richard Thomas Illinois 18s, 21j, “Bunn Special”, s/n: 1256308, ca 1895: Undocumented Movement Marking? From 1894 (open face) and 1893 through 1895 (hunting case), Illinois introduced a new 21j, 18s, full plate...