1867, Coat of arms 1r. red, horizontal pair, tied by circular grid to envelope with adjacent cds. "SAN SALVADOR SALVADOR 23 SETIEMBRE 1872" to Paris, black "PANAMA-TRANSIT OC 3 72" and accountancy mark "GB 1F 90c" alongside, minor ageing, a splendid and rare entire, certificate PF (1997)
Provenance: Joseph Hahn (Christie's, Robson Lowe, April 1979)
