This is a beautiful sheet of 10 stamps, issued by Guyana in 1999, honoring The Queen Mother Elizabeth Bowes-Lyon. Featured on the stamps are the Queen Mother during the Second World War, the Royal Wedding of the Duke & Duchess of York in 1923, Elizabeth Bowes-Lyon during childhood at Glamis, the Queen Mother at the Coronation of George VI in 1937, the Queen Mother at her 60th birthday, Queen Elizabeth at the Royal Agricultural Show in the 1950s, the Queen Mother on her 88th birthday, Lady Elizabeth Bowes-Lyon at age 14, and as the Queen Mother on her 91st birthday. The sheet is Scott Catalog #3454, and is Post Office fresh, mint never hinged, and F/VF.