This is a 5.5 inch in diameter gold trimmed porcelain saucer with a great sepia profile of Queen Elizabeth II and color graphics surrounding her. The saucer was done for the coronation in 1953. The mark shows the Staffordshire knot, so it was made in Staffordshire, England and the mark for Kensington KPB Ware. It is in very good condition with no chips or cracks. Maybe you have the mate? Shipping in the US by USPS priority insured with tracking is $7.60.