"PAID AT SAN JUAN PORTO RICO", fair strike on lettersheet to Rivadeo, franked with Spanish West Indies 1857 ½ r. blue, tied by oval ´parilla` with adjacent blue "ADMON GRAL. PUERTORICO 14 DIC 57", handed over to the British PO with cds. "SAN-JUAN-PORTO-RICO DE 14 1857" on reverse, red circle "PD" applied by mistake, cancelled by fingerprint and corrected with red "PP", transit and arrival cds.; a fine, scarce and unusal cover