Security around the Prince of Wales appears to have been stepped up in the wake of the student protest attack on his Rolls-Royce.
Charles was accompanied by a stronger police presence than normal during a visit to open the newly refurbished Jewish Museum in Camden, north London, on Tuesday.
The Prince arrived in a racing green Bentley limousine, a vehicle he does not often use, which is believed to be armour plated with bullet proof glass.
There appeared to be more protection officers with him, and his small motorcade was joined by an unmarked police van.
The Prince and the Duchess of Cornwall were caught by a mob of protesters last Thursday in Regent Street on their way to the Royal Variety Performance at the nearby London Palladium.
The group smashed a widow of their luxury limousine and Camilla was reportedly poked in the ribs with a stick and was pictured looking visibly distressed.
Charles appeared relaxed the day after the attack during a St James’ Palace reception for members of the Commando Helicopter Force, but the trip to Camden was his first public engagement outside a royal residence.
Ken Wharfe, a former protection officer to the Princess of Wales and Prince William and Prince Harry during the late 1980s and much of the 1990s, welcomed the apparent increase in security.
He said: “The Prince does have at his personal disposal an armoured Bentley built around 12 or 13 years ago to the best specification of armoured plating and ballistic glass plating.
“It’s the best vehicle to travel in and would offer the best protection if he were to come under attack.”