The product is a GB-2000 "Machin Definitives" First Day Cover featuring self adhesive stamps. This cover commemorates the First Day of Issue of these stamps and includes a Special Handstamp from Windsor. The stamps are in superb quality, decimal currency, and showcase the iconic Machin Definitives design. Originating from the United Kingdom, this multi-coloured cover is a sought-after collectible for stamp enthusiasts and collectors of British philately.