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 product is a set of sixteen stamps from Ajman, United Arab Emirates, featuring a bird theme. These stamps are in Mint Never Hinged quality, grade as Extra Fine, and are from the United Arab Emirates. The set is not certified but is described as being in excellent condition.