Kelvin Chen Heart Shaped Postage Stamp Holder - Cats This Hand painted Postage Stamp Holder will look great on your desk or makes a great gift! The Artist name and item number are inscribed on the bottom of the mailbox. Limited production. Measures 2 3/8D"x 2 1/4"H Ships in a blue padded, linen lined box and comes with a Certificate of Authenticity.