Paraguay Scott #1716 FIRST DAY COVER US Bicentennial and Space $$ 377278
Paraguay Scott #1716 FIRST DAY COVER US Bicentennial and Space Flags $$ 377279
Paraguay Scott #1716-3 FIRST DAY COVER US Bicentennial Space Flags $$ 377280
Paraguay Scott #1716-4 FIRST DAY COVER US Bicentennial Space Flags $$ 377281