I will be in receipt of the Guards coat in about three weeks from now. The coat is a navy blue colour and a very heavy wool cloth.
Duke of Kent seen below wrapped up in an Astrakhan furred overcoat, holding a top hat, and accompanied by Princess Marina.
The late Duke of Windsor's (Edward the VIII) Astrakhan overcoat
The Late Duke of Windsor's Guards overcoat, eight buttons - four buttoning, clearly shows the direct link to the Royal Navy Great Overcoat though without the brass buttons, epaulettes and rank distinction on the arms and shoulders.
HRH Prince Charles seen wearing a a double breasted Guards coat in navy blue, six buttons - four buttoning. I like the posture - very majestic - indeed,
All pictures sourced from the Internet