Stamps will be sent USPS first class mail with stiffeners to protect stamp.
I am changing how shipping charges are done. I am going to add a minimal shipping charge, but reduce the base cost of the item, so the total is still the same for US buyers. For international buyers it will be cheaper. However, if you buy more than one lot, there is only a single shipping charge based on the weight of all of the lots. In order to get the combined shipping charge you need to put all the lots in the same shopping cart and then buy them, but don't pay for them until I send you an invoice, which will show the combined shipping cost. If you buy the items separately, you will be charged a shipping cost by eBay for each individual lot
International shipping rates are determined by eBay and are the responsibility of the buyer. For small, inexpensive lots I will ship by untracked mail at lower cost at buyer's risk (If I have set that possibility, that is what will show on your shipping cost).