The Queen traditionally spends the Christmas and new year period at her private Sandringham estate in Norfolk.On Monday, the head of state made history by becoming the first British monarch to reach their Sapphire Jubilee. David Bailey’s 2014 portrait of the Queen, showing her wearing a suite of sapphire jewellery given to her by King George VI as a wedding gift, has been reissuedCredit:PA Three-year-old Jessica Atfield, who dressed for the occasion in a union flag skirt, was delighted when she handed a bunch of flowers to the Queen. A portrait by David Bailey, taken in 2014 and showing the Queen wearing a suite of sapphire jewellery given to her by King George VI as a wedding gift, has also been reissued. The Queen may well be matter-of-fact about the historic occasion. In 2015, when she thanked the nation for its kind messages after overtaking Queen Victoria to become the longest-reigning monarch in British history, she admitted the royal record was “not one to which I have ever aspired”.She added: “Inevitably, a long life can pass by many milestones. My own is no exception.” A 62-gun salute by the Honourable Artillery Company was fired at the Tower of London at 1pm.The Queen was in good spirits on Sunday as she greeted well-wishers after attending a church service at St Peter and St Paul in West Newton, Norfolk. It was 65 years to the day since the Queen acceded to the throne following the death of her father, George VI, on February 6 1952.As she has in previous years, the Queen spent Accession Day privately at Sandringham.At King’s Lynn station, the Queen appeared to have fully recovered from the heavy cold that blighted the start of her break and forced her to miss church over Christmas. The Queen receives flowers from Jessica Atfield, three, after a church service on SundayCredit:Gareth Fuller/PA It is likely that any large-scale jubilee celebrations will be reserved for the Platinum Jubilee in 2022 – although any events will take into account the fact that Queen is due to turn 96 that year. The King’s Troop Royal Horse Artillery stage a 41-gun salute in Green Park, central LondonCredit:Jonathan Brady/PA Royal Mail’s Sapphire Blue £5 stamp A new £5 coin designed by Glyn Davies to celebrate the Queen’s Sapphire Jubilee But during the period, the Queen was still working on her famous red box of official papers.The red boxes, sent to her by her private secretaries, contain policy papers, cabinet documents, telegrams, letters and other state papers from government ministers and representatives in Commonwealth and foreign countries. Royal gun salutes were staged in London on Monday, as is the tradition, with a 41-gun salute by the King’s Troop Royal Horse Artillery in Green Park at noon.The Band of the Royal Artillery played a selection of celebratory music close to the firing position as 89 horses pulled six First World War-era 13-pounder field guns into position in the park. The Queen looked relaxed on the platform in NorfolkCredit:Victoria Jones/PA The Queen has made the journey by train back to London after her traditional winter break came to an end.Looking relaxed and wearing a lime green coat and a headscarf, the monarch was photographed boarding a train at King’s Lynn station. The Queen celebrated her 90th birthday last year, with activities including a walkabout, beacon lighting and a black tie dinner for family and friends in Windsor on her actual birthday.A weekend of national celebrations, including a party on The Mall, was held for her official birthday in June. Members of the King’s Troop Royal Horse Artillery in Green Park, central London, after staging a 41-gun saluteCredit:Jonathan Brady/PA The Royal Mint is marking the 65th anniversary with a range of specially designed Sapphire Jubilee commemorative coins, as the Royal Mail issues a Sapphire Blue £5 stamp. The Queen boards a train at King’s Lynn railway station on Tuesday morningCredit:Victoria Jones/PA Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.