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 China Republic of China 3709-11 stamps in Extremely Fine (XF) condition, Mint Never Hinged (MNH). These stamps were issued in China and are uncertified. The set features a rat design, making it a unique and collectible addition to any stamp collection.