It is a locomotive whistle no different from other outmoded whistles. But it was the one installed on the "Bayi Hao" train, the first steam locomotive to take to the rails following the founding of the PRC.
With no fine printing, ornate bookbinding, or compilers' names, the unadorned internal document made in the 1950s has never been published but has been regarded as a treasury of China's power industry for more than 70 years by workers in the field.
The image printed on the Chinese 1962 one-yuan paper banknote was a woman driving a tractor. It was the country's first domestically-developed tractor manufactured by China National Machinery Industry Corporation Ltd (Sinomach) in 1959.
Weighing more than 169 kilograms and with a thickness of 7.5 centimeters, China's first bulletproof glass for cars was born at a workshop of China National Building Material Group Co., Ltd.(CNBM) in 1968.
Dating back to 1984, it was in Sweden that Li Yisheng, then head of the Guangdong Provincial Posts and Telecommunications Administration, saw a wireless telephone for the first time.
