Four Baltimore & Ohio Railroad China Centenary Thomas Viaduct Plates 6 1/2" A set of four 6 1/2" Scammell's Lamberton B&O Railroad china plates in the Centenary pattern with the Thomas Viaduct graphic, all bottom stamped 1827-1927 Baltimore & Ohio Railroad Scammell's Lamberton China Design Patented. The plates show minor signs of use with a few light utensil scratches. One plate does have a visible 1 1/2" glaze crack to the right of the Atlantic 1832 graphic and is also visible from the underside. No other chips, cracks, or breaks in the group. See photos for best description.