2 MASON DECOYS - CANVASBACK. BACK BAY - OVERSIZE STYLE - PAIR. This pair of decoys came from a rig used on Knott's Island, N. Restored to their current condition 35 years ago by M. Waterman Knott's Island N.These are rare and will make an excellent edition to any collection. The item "MASON DECOY CANVASBACK PREMIER GRADE BACK BAY OVERSIZE PAIR 2 RARE" is in sale since Friday, July 26, 2019. This item is in the category "Sporting Goods\Hunting\Vintage Hunting\Duck Decoys". The seller is "endlessitemstore" and is located in Virginia Beach, Virginia. This item can be shipped to United States.