Two cased Royal presentation stickpins

Two cased Royal presentation stickpins, early 20th century, comprising: a red enamel and diamond stickpin for George V set with rose-cut diamonds and a red enamel crown in platinum and gold, width 12mm, case, with a similar ruby, diamond and enamel stickpin for George V, the G set with diamonds, the R set with rubies and the crown with blue and red enamel in platinum and gold, width 11mm, case