Postcard collection plots modern history

Retiree is proud of his collection, which illustrates how China has changed, and likes telling stories about it

Retired electrical engineer Kong Xiangming has collected more than 6,000 postcards over the past 48 years that vividly illustrate China's history and radical transformation.

The postcards, the 70-year-old's most prized possessions, feature different themes, including the landscapes of different areas, China's reform and opening-up, the Beijing 2008 Olympic Games, and anniversaries celebrating the founding of the People's Republic of China.