A tiny little piece of paper, found in a village in north China's Hebei Province, would be hard evidence rebutting Japanese government's claim of the absence of sex slaves during World War II.

The 5cm x 3.8 cm voucher, believed to be a sex ticket used by the Japanese army during its invasion of China, was found by Liu Xianchun, a Hebei resident, according to a Xinhua report.

It was sticked to the inner surface of a Japanese-made fragrant powder box left by his grandfather who, a prominent doctor, collected a lot of stuff from the Japanese army after the end of World War II.

The characters as "The Sixth Sex Slave Center" and "Yinglou Building" as well as the Japanese army flag could still be seen on the voucher. Under the word "Yinglou Building," there are twenty-something blurred rectangular boxes, which are believed to be the identification numbers or names of the sex slaves.

During the Japanese invasion of China, about 200,000 Chinese women were kidnapped by the Japanese Army and forced to be their sex slaves. It is believed that Japanese military set up more than 10,000 sex slaves centers in more than 20 provinces in China.

Tian Susu, an expert with of Hebei academy of social sciences researching the Anti-Japanese War, said the Japanese army set up entertainment centers and abducted women from China, Korea and other Asian countries and regions to be their sex slaves, or comfort women.

Tian further elaborated, "'Yinglou Building' was the name of a sex slave center and the ticket was given to soldiers to be used when they went there."

Su Chiliang, professor from the research center of Sex Slave Question in Shanghai Normal University, condemned the act of the Japanese in the World War II as government-planned military act.

"There are sex slaves wherever Japanese invading troops went at that time."
This ticket further proves the presence of sex slave houses operated by the Japanese army. Some Japanese officials denied its existence.

"This is the first time that a sex voucher used by the Japanese Army was found in China. Researchers have only seen that from Japanese's photos," said Su.

(China Daily July 9, 2005)