What an intriguing set of photos. I think you might be on to something. If these are the same brooches it is possible that they are from the Duchess' family. Your archive is amazing Maridje.
--Previous Message-- : picture from Frank : : : CAMILLA DCHSS CORNWALL - 2012/04/27 - VISIT : IRLAND BOULANGERIE - IRWIN PORTADOWN : : : : : : CAMILLA DCHSS CORNWALL - 2011/07/22 - : RECEPTION FOR WOUNDED SERVICEMEN AND WOMEN - : 1 : : : : : Perhaps it's the same in 1989 : : :