Pink Coat with Black Hat

This beautiful candy pink coat has black stripe accents and is worn over a black dress with black accessories. I've found out more info recently. (I originally believed the contrast colour was navy.) I think the hat might be the less famous black straw funeral hat with the curled ribbon hat band trim replaced with a wide coat matching pink ribbon band.

The occasion was a submarine christening in the north of England in 1992. Upon arrival an anti-nuclear demonstrator approached her car door and Diana looked concerned. Her protection officer removed the man from the premises. I'm not aware of Diana wearing the coat again. My guess is that she associated the outfit with the incident and got rid, as you would when you've had a startling experience with an angry, screaming protestor attacking your car.