This American Presidents 38-ingots Set was produced in a limited edition, minted by Hamilton Mint, Serial #2581. Each 1 oz proof finished ingot was minted in. The ingots were struck in bas-relief from the sculpture of Alfred Brunettin. This set was issued exclusively to established the Hamilton Mint Collections. Comes in original wood presentation case with 34 COAs. These art bars are in an very good condition. What you see in the photo is what you get. Each ingot is one Troy ounce of. As seen in the photos, there is some tarnishing on several of the bars. Comes in original wooden case with 34 certificates of authenticity (COAs) the case also has some wear – see photos. A beautiful and hard to find collection! Hamilton Mint American Presidents Complete Set of 38. Each bar one troy ounce. Presidents Washington to Ford. With 34 COAs (4 missing). Most bars are protected in plastic wrap, some bars have minor tarnish on edges. Otherwise, clean and in very good condition.