Royal Air Force blue and white enamel sweetheart brooch - 1

World War Two era Royal Air Force sterling silver sweetheart brooch with blue and white enamel detailing.
It features outspread pilot wings with white enamel flanking a central wreath containing the letters 'RAF' on a blue enamel background, surmounted by a King's Crown with red enamel detailing.
The reverse of the brooch is plain with the exception of the word 'SILVER" impressed into the back of the crown.
It has a pin clasp for attachment.