Three Halcyon Days enamel Royal Yacht Britannia boxes and one other

Four Halcyon Days enamel boxes; two Seaday Symposium HM Yacht Britannia, May 1991; Royal Yacht Britannia, limited edition 140/750; sold together with a further small miniature Halcyon Enamel pillbox with note 'Presented by the Duke & Duchess and York May 1998 in Los Angeles upon HMS Britannia', all boxed (4)