The Queen has worn these two badge brooches before!
WINDSOR, UNITED KINGDOM - NOVEMBER 26: Queen Elizabeth II looks at a horse as she meets members of the Household Cavalry at Combermere Barracks on November 26, 2012 in Windsor, England. (Photo by David Parker - WPA Pool/Getty Images)
LONDON - JUNE 13: (NO PUBLICATION IN UK MEDIA FOR 28 DAYS) Queen Elizabeth ll looks at exhibits in the Household Cavalry Museum at Horse Guards Parade on June 13, 2007 in London, England. (Photo by Pool/Anwar Hussein Collection/Getty Images)
LONDON - MAY 21: Her Majesty the Queen is shown meeting guests May 21, 2003 in London. In an event which occurs only every ten years, the Queen will present new standards and guidon to the Household Cavalry at the Horse Guards Parade. (Photo by Graeme Robertson/Getty Images)