large lot of matching late 19th or early 20th century antique american victorian era majolica tiles executed by the robertson art tile company, morrisville, pa. the 3 x 3 inch square tiles are in good shape with very little mortar on the back or edges. the richly colored art tiles were salvaged from a chicago residence undergoing demolition. the fabricator's name is marked prominently on the backside of each tile. priced for the lot.