Fascinating sketches of costumes for Princess Diana's tour in the Gulf will raise thousands of dollars at auction, and include a drawing of a burqa for her visit to Saudi Arabia.
Diana, who was 25 years old at the time, recruited designers David and Elizabeth Emanuel to make dresses that "conformed to local customs" before their 1986 tour of the Gulf States in 1986.
The husband-and-wife duo, who famously designed Diana's wedding dress, presented sketches of four demure costumes, including a black and white silk evening dress.
The sketches include a drawing of a burka, which is described as a "reserve set" for Saudi Arabia. Diana never used the burka during her 1986 tour of the Gulf states
Diana wore the evening dress in Saudi Arabia in November 1986 (top), when she attended a lavish banquet hosted by King Fahd.
Fascinating sketches of costumes for Princess Diana's tour in the Gulf will raise thousands at auction. The drawings by David and Elizabeth Emanuel include a black and white evening dress made of silk duchess satin, decorated with a striped bow
The designers also drew a "reserve outfit", which was a burka that would cover Diana from head to toe with only a hole for her eyes.
The Princess of Wales did not wear a burka during the trip, but the fact that she was willing to consider it shows her sensitivity to other cultures.
The sketches, along with fabric samples for the sets, are being sold by the US-based auction house. UU RR Auctions and have a sale offer of $ 30,000 (£ 24,000).
The drawings include a navy blue and white robe over a white dress, a purple evening dress and a white silk evening dress.
The Emanuels also designed a white silk evening dress inlaid with crystals and rhinestones around the bodice.
Diana wore the elegant white evening dress for a banquet in Bahrain in November 1986, which she attended with Prince Charles (left)
The collection also includes a letter, dated June 2, 1986, sent to the Emanuels by Diana's lady-in-waiting, Anne Beckwith-Smith, who describes the strict requirements for her garments during the tour.
She wrote: Certain special requirements relating to clothing must be observed and I am writing to ask if it would be possible to send The Princess of Wales some sketches for the day and the night from which Her Royal Highness could select elements for this tour. .
"Their Royal Highnesses will visit Oman, Qatar, Bahrain and Saudi Arabia, in all cases, modesty is the order of the day."
The invoices for the dresses also appear on the sale, which reveals that they cost between £ 275 and £ 450 each.
Diana was photographed looking at the sketches with David and Elizabeth Emanuel at her home in Kensington Palace in September 1986 (above)
The Emanuels sketches, which will be up for auction, include a navy blue and white striped coat with a demure white dress underneath
Diana wore the striped coat and white dress, along with a matching hat, in Bahrain in November 1986.
The collection has been put on sale by a private collector and it is believed that this is the first time it appears on the market.
Bobby Livingston, executive vice president of RR Auctions, said: "Princess Diana tried to conform to local customs by wearing clothes that hid her, but she still left her neck exposed and left her head uncovered.
"At the evening banquets, she appeared with the demure long-sleeved dresses made especially for the tour." She did not have to wear the burka "reserve suit" depicted in this file.
"It is a remarkable and complete file of the famous and elegant Royal".
The drawings also come with fabric samples. In the photo, a dress printed in red and white designed by Emanuels
The Princess of Wales wore the dress, with longer sleeves and a neckline higher than in the sketch, when she joined Prince Charles in Qatar in November 1986.
The sketches, which are meant to look for thousands at an auction, also include a drawing of a purple evening dress with diamond buttons. Diana did not seem to wear this particular dress during her tour of the Gulf
Diana and Charles made a six-day stop in Oman, Qatar, Bahrain and Saudi Arabia in November 1986.
In Saudi Arabia, she was invited to King Fahd's palace, a rare honor for a woman, although she was not allowed to dine with men.
The Emanuels designed more than 100 sets for Diana on special occasions and for when she traveled abroad.
The sketches and the letters that will accompany them will take place on September 25.
The collection also includes a letter, dated June 2, 1986, sent to the Emanuels by Diana's lady-in-waiting, Anne Beckwith-Smith, who describes the strict requirements for her garments during the tour (above)
The lot also includes invoices of Diana's dresses, which reveal that they cost between £ 275 and £ 450 each