5 c deep reddish brown and 10 c slate blue in horizontal pair, all with good to mostly large margins, tied to lettersheet from "CONCEPTION 14 DECB 54" to Valparaiso. Some slight climatic toning not affecting the stamps. Very fine and rare entire with both denominations. Certificate Philatelic Foundation (1994) (Scott 3,5a)

Provenance: Jean Dupont (Balasse 1981)