QUEEN ISABELLA II ISSUE OF 1863

1863 SEPTEMBER 19: MANILA to CADIZ
Franked with 1 real gray green x 2 for double outbound rate,
with oval matrix colonial ties and small Manila cds on the side.
Routed via Gibraltar.

ONLY TWO ENTIRE COVERS KNOWN

1863 SEPTEMBER 4: MANILA to RIVADEO
Franked with 1 real gray green x 2, double outbound rate.
Routed via Marseilles.

RARE PAIR USAGE