We will always combine shipping. If items are on sale, we will need to refund you within 24 hours. Shipping policy for domestic small items: The highest shipping plus 75 cents per lot. Larger domestic shipping items are the highest shipping plus $1.00 shipping. Large albums and heavier items vary. The ICOLLECTZONE US Palau 369 Dinosaur Sheet is a mint never hinged postage stamp set from the United States featuring a dinosaur theme. This collectible item is a part of the stamps category and has not been certified for its authenticity. With a grade of XF (Extremely Fine), this stamp set is sure to be a valuable addition to any stamp collection focusing on unique and interesting designs.