latitude 30 niue sanxingdui mask antiqued gilded finishes silver coin sculpture civilization chinese shu culture sichuan china

2oz alien ancient antique antiqued archaeologists artifacts auction beings big blessing bulging ceremony chengdu china chinese civilization coin collectible collection colour conservation culture curator eared ebay eyed figure finishes gallery gilded guanghan hemisphere heritage history invest investment latitude latitude30 mask metals museum myth mythology niue northern old precious protection retro sanxingdui sculpture shield shu sichuan silver sothebys stylish supernatural superstitious surface texture tomb treatment tribal tribes unesco vintage