(1) 2001 American Buffalo Silver Dollar (x2) Proof & MS/UNC 2 Coin Set with Box & COA. We are a full service coin shop located in the city of. We are open 6 days a week 9-5. The combined items are. Please wait till all items have ended and request a single invoice with combined total. Some exceptions may be made if the items are extremely light weight. Check out our other items.