1998-S    Proof Set with box.    Sets are 10% above Grey Sheet, wholesale, plus shipping.           We do combine shipping.  If you purchase more than two of any proof sets in my store, 3,4,5 & 6 will not have any more shipping added on. If you're not sure then ask for an invoice BEFORE you pay so I can adjust the final cost.   I will use the USPS flat rate box on larger orders.     There is an upcharge from eBay on every purchase.   purchasing 10 separate coins and the upcharge is 10 times VS 10 separate coins in a CART is only 1 upcharge.   I'm sometimes a little slow on responding & invoices, however I will respond to you.  Please mix & match anything in my store, use a cart and I'll give you a final Price.                                                                                                                                                                                                                                                                             Thanks Kevin