The Duke of Edinburgh now has his own personalised Air Force One jacket thanks to US President Donald Trump, while the Queen has a Tiffany silver and silk poppy brooch.
Philip, who did not take part in the official engagements as part of the US state visit on Monday, was brought the present by the American leader and First Lady Melania Trump.
A personalised Air Force One jacket – worn over the years by many a president – is usually navy, features the presidential seal, with the embroidered words Air Force One in white on one side of the chest, and the wearer’s name in italics on the other.
Philip, who has retired from public duties and spends much of his time at Wood Farm on the Sandringham estate, did not meet the Trumps at Buckingham Palace behind the scenes.
Air Force One – which can refer to any Air Force aircraft carrying the American leader – usually refers to specific planes equipped to transport the president, who is also the US’s Commander-in-Chief.
According to the White House website, Air Force One is “one of the most recognisable symbols of the presidency, spawning countless references not just in American culture but across the world”.
It adds: “Emblazoned with the words United States of America, the American flag, and the Seal of the President of the United States, it is an undeniable presence wherever it flies.”
Air Force One, which is capable of refuelling mid-air, can withstand electromagnetic pulses and is able to function as a mobile command centre in the event of an attack on the US.
It has 4,000 sq ft of floor space on three levels, including an extensive suite for Mr Trump with a large office, toilet and conference room, as well as a medical suite which can transform into an operating theatre, an onboard doctor and two food preparation galleys which can feed 100 people.
The duke, now 97, was an accomplished pilot in his day and gained his RAF wings in 1953, his helicopter wings in 1956 and his private pilot’s licence in 1959.
The Queen’s gift, which formed part of the traditional exchange of presents between heads of state, came in a custom White House wood jewellery box in red leather box, Mrs Trump’s office said.
On the Tiffany & Co website, an Elsa Peretti sterling silver and red silk brooch – called Amapola after the Spanish word for poppy – is for sale for £600.
— Tiffany & Co. (@TiffanyAndCo) August 20, 2015
Philip was also brought a first-edition signed autobiography by James Doolittle: I Could Never Be So Lucky Again.
American hero General Doolittle was an aviation pioneer who led the daylight air raid on Tokyo and other Japanese cities four months after the Japanese attacked Pearl Harbor.
The Queen’s official gift to Mr Trump, presented after a private lunch on Monday at the Palace, was a first edition of The Second World War by Winston S Churchill from 1959.
The crimson book features gold tooled decoration on the cover, spine and inner cover, an EIIR cypher in gold on the front, silk endpapers and hand-sewn headbands in colours of the US flag with all pages edged in gilt.
The monarch also gave Mr Trump a three-piece Duofold pen set – a fountain pen, rollerball pen and ball point pen with EIIR cypher – using the obsidian design, exclusively made for the Queen.
Mrs Trump was presented with a specially-commissioned silver box with a handcrafted enamel lid.
Its royal blue decoration featured roses, thistles and shamrocks to represent the ceiling of the palace music room.
During a tour of Royal Collection items in the Buckingham Palace picture gallery on Monday, the president was unable to remember a pewter statue of a horse that he gave the Queen as an official gift when they met at Windsor Castle in July last year.
Tim Knox, director of the Royal Collection, said when Mr Trump was asked if he recognised it, he replied “no” but “the First Lady did recognise it, which is rather nice”.
Mr Knox joked: “But one horse looks very much like another.”