The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Interior of the Palace of Heavenly Purity. China National Publications Import and Export Corporation
Gate of Heavenly Purity at the Palace Museum. Peking Post Office
Palace of Heavenly Purity at the Palace Museum. People Republic of China
The Interior of Qian Qing Gong. Palace of Heavenly Purity. Postcard
The Interior of Qian Qing Gong. Palace of Heavenly Purity. Where the Qing Emperors and Empresses Held Important Ceremonies
A Close Shot at Qian Qing Gong. Palace of Heavenly Purity