Los-Nr. 1773

1879, UPU 1c. green and Vulcano 10c. orange tied by blue boxed "29 FEB 8" (used in San Salvador for a short period) to cover with adjacent cds. "CORREOS SAN SALVADOR 29 II 82" to Paris with arrival mark, tying the 1c. adhesives, part of backflap missing, a fine and attractive usage