1915-S Panama-Pacific Exposition $50. Round. MS-61 (PCGS). OGH. A lovely Mint State example of this fabled key date entry in the United States Mints classic commemorative gold coin series. Subtle olive undertones backlight dominant color in warm orange-gold. The reverse retains full mint frost and is smooth enough to support a Choice Uncirculated grade. As seen so often on survivors of this type, the obverse shows signs of minor handling, in this case faint hairlines over and before Athenas portrait that have muted the luster in those areas. There are no sizeable marks, however, and striking detail remains full. A thin, shallow, noncontiguous planchet drift mark that bisects the final Roman numeral V in the date is as made and barely discernible in hand.<p> <strong>To view all items from the Augustana Collection, click <a href="https://auctions.stacksbowers.com/lots?sort=auction_date_lot_number_asc&search=the+Augustana+Collection&limit=36&lots_range=upcoming"> here.</a></strong> From the Augustana Collection.