DOMINICAN REPUBLIC. Quartet of 20th Century Silver Issues (4 Pieces), 1952-1963. All NGC Certified..1) 25 Centavos, 1956, KM-20, exhibiting attractive satiny luster. MS-64p2) 1/2 Peso, 1959, KM-21, blast white and flashy. MS-64.p3) Peso, 1952, KM-22, exhibiting satiny luster with very light peripheral toning. MS-63.p4) Peso, 1963, KM-30, with a mintage of 20,000, largely untoned. MS-63.p.