Internal cover franked with pair 1901 1c lilac & olive green 'Arms' issue (SG 110) tied by SANTO DOMINGO cds in blue. Addressed to 'Senor Don Edward Hall, Administrador del Ferrocarril Central Dominicano, Puerto Plata' with arrival cds in purple on front. A scarce internal 2c rate cover. Edward Hall was an American engineer who oversaw the development and building of the Dominican Republic railway network from 1892.