Ingram Richardson Co. Porcelain Sample Sign: 11 x 8.5″ outstanding, early heavy enameled porcelain advertising sample sign made to look like a typed letter on Co.’s stationery. Given as a salesman’s sample by the Ingram-Richardson Porcelain Sign Co. for giving to advertising executives as a promotional sample of their work. Very high quality piece that is crisp, bright and like new (display side near mint), w/ some light edge wear on backside. Min. bid $100.