Uncommon flight envelopes bearing El Al Israel Airlines labels featuring the national flags of Egypt and Israel, both 9 x 4, one dated December 13, 1977, and the other to December 25, 1977, which is stamped with flight numbers “Ly 448, Ly 447.” In overall fine condition. These two envelopes predate the advent of commercial flying between Israel and Egypt, which began in 1980 after the signing of the Egypt-Israel Peace Treaty in March 1979.
