qianlong emperor palace museum west kowloon cultural district jade stone carvings seals antique stamps chop exhibition

1790 antique art arts asia autograph birthday calligraphy carvings celebration characters chinese chop collection crafts craftsmanship cultural culture design display district emperor exhibition folk gallery gem grid heritage history hong jade kong kowloon layout marble mark museum orient palace precious qianlong qingtian rock seal seals set sign signature signed stamps stone treasure unique west