Hong Kong Airport, Chek Lap Kok, opened in 1998.   Sometime in the mid-1990s, the New Airport Projects Co-ordination Office issued a book of 4-7/8″ x 8-3/4″ postcards and we have some from that set, all unused, all with perforated top edge.  To end the series, this card shows that the “Western Harbour Crossing is Hong Kong’s largest cross-harbour road tunnel”  (there are three, so it’s not hard to be the largest).   Grade: 1