The Emperor Qianlong's seal and Emperor Jiaqing's seal shown in the pictures are from the collections of the Beijing Palace Museum.
邮票图中乾隆、嘉庆两方宝玺均收藏于北京故宫博物院。
The Emperor Qianlong's seal and Emperor Jiaqing's seal shown in the pictures are from the collections of the Beijing Palace Museum.
邮票图中乾隆、嘉庆两方宝玺均收藏于北京故宫博物院。
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