![SALVADOR - 1917 - MULTIPLE: 1c on 6c deep violet 'OFICIAL' overprint issue with small 'CORRIENTE' provisional surcharge, a fine mint block of four. Uncommon in multiples. (SG 704) (SAL/26352)](http://latinamericanphilatelics.com/cdn/shop/products/SAL26352_{width}x.jpg?v=1613747078)
1c on 6c deep violet 'OFICIAL' overprint issue with small 'CORRIENTE' provisional surcharge, a fine mint block of four. Uncommon in multiples. (SG 704)
1c on 6c deep violet 'OFICIAL' overprint issue with small 'CORRIENTE' provisional surcharge, a fine mint block of four. Uncommon in multiples. (SG 704)