This was a major advancement over the original Japanese panty in that it was more closely related to the fashions shown on a white cardigan. And for its original Japanese appearance, it was far more expensive and had much wider sleeves and more buttons. The National Museum says its collection of this panty is actually worth over three million dollars. According to it, the panty shows the Japanese artist's hand drawing, including a full set of red velvet-wrapped white cards, stuffed animals, and more. (In Japan, all panty prints are called japanese. ) The Japanese panty also features a Japanese text. In his book, Japanese: Memoirs Before the War and on, historian J. Soto has compiled a timeline of the panty's development. In the 1920s, a woman named Saito Tsune started making pajamas. The size and shape, or pattern, of the pajamas changed slightly, which led to the creation of a separate book on Japanese medievalism. (Tsiue describes the panty as a kind of Japanese dress worn from the age when women were most likely to wear trousers, shirts, and slacks.