GB QEII - Comm Cover visit to 14th/20th King's Hussars by HRH Princess Anne. Colonel in Chief
Interesting facts:-
 - cover is cancelled by a specially designed cachet for one day only
 - first time that a specially designed Forces cover was issued in Hong Kong
 - first time that "Hong Kong" appeared on a British Forces postal service date stamp
 - 5000 covers were organised by the R.A.F. Hong Kong Philatelic Society. numbered and signed
 - limited edition cover # 3553 of 5000