Lot no. 781

1878, Alfons XII. with overprint 25c. violett, block of four and two singles with parilla killers and adjacent cds. "MAYAGUEZ 14 MAR" on registered coverfront to Puerto Rico with straight-line "CERTIFICADO" alongside, manuscript mark "1 3/4 onzas" at upper left, two stamps of block of four with crease, otherwise a fine and very rare item Provenance: 332. Heinrich Köhler Auction