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 is a collection of 100+ different worldwide stamps that are off paper, meaning they have been removed from their original backing. The stamps come from various regions and time periods, including both old and modern stamps. They vary in size, with some being larger and others smaller w/duplicates. The collection offers a diverse selection of stamps for collectors to enjoy and potentially add to their own collections. I will pick 100+ Random stamps from the pile of which I add to weekly. You never know what stamps you will get. No two orders are ever the same it's all RANDOM. Questions message me.