SANDWICH, MASS. — On August 24, Charles Street Auction conducted a 435-lot sale of decoys, antique sporting objects, US militaria, early Americana and ornithological art. A 23-inch tiger maple gunstock tomahawk with a 5-inch blade wound up as the sale’s …SANDWICH, MASS. — On August 24, Charles Street Auction conducted a 435-lot sale of decoys, antique sporting objects, US militaria, early Americana and ornithological art. A 23-inch tiger maple gunstock tomahawk with a 5-inch blade wound up as the sale’s …