The product is a collection of first day covers from the 1986 Royal Wedding, featuring 'Silk' covers that are limited edition. These covers commemorate the event with a 12p and 17p denomination, originating from the United Kingdom during the years 1981-1990 under Queen Elizabeth II's era. The cancellation type indicates that they were issued on the first day of the event, making them a unique and collectable item for stamp enthusiasts and fans of royal occasions.