Four (4) rare unmarked 1988 Dominican Republic Commemorative 50 cent postage stamps. "Republica Dominicana Correos 50 cents Centenario Parroquia Duverge 1988".  The faces of the stamps are in brilliant color and the adhesive or gum backings are in excellent condition. Each stamp is 1 1/2" x 1 3/16" in size. (see photos)