I picked up a 1966 set from a particular seller on
ebay and the coins were just stunning proof coins with perfect cameo finish. He listed a 1965 and a 1967 for very good prices and I grabbed those, but these came in yellowing plastic and the coins have a bit of buildup on them. A little disappointing after the first set. Although the 1967 dime and quarter have some pretty attractive brown toning around the rim, so that's not too bad.