NANTUCKET, Mass. – Rafael Osona Auctions is known for uncovering treasures from far-reaching corners, but it’s two close-to-home artists whose works will drive the excitement during the August 28 sale. Six Ralph Cahoon paintings and eight lots of meticulously hand-crafted artisan furniture by Stephen Swift headline a lineup of almost 500 lots, sharing the stage with fine and maritime arts from Nantucket and beyond; South Sea pearls; period American, English, and Continental furnishings and decor; whaler-made collectibles; Nantucket baskets; sterling silver; Chinese export; antique carpets; and collectibles during Rafael Osona’s 41st annual late summer Auction. Absentee and Internet live bidding will be available through LiveAuctioneers.