1879 Hong Kong QV 3c on 16c formula postal card (white card with red printing) (Type A) in error affixed 5c on 16c surcharged stamp with normal "T" in CENTS,
1879 Hong Kong QV 5c on 18c formula postal card (white card with blue printing) (Type B) in error affixed 3c on 16c surcharged stamp with short "T" in CENTS,