I can't read the thick writing on the bottom. Actually the cloth is intended to be folded lengthwise, so the thick writing is appearing upside down. It should be folded, so its on the reverse side of the tiger. Anyway, even when I flip the image 180 degrees I still can't make it out, something 物皇道 (something "imperial way"?). Could be a patriotic slogan.
Edit: The stamp next to some of the thick writing says 松井石根 (Matsui Iwane), a general in the Imperial Japanese Army, and a key figure in Japan's military affairs in China, including the Nanking Massacre. Hard to say why his stamp is on this item. I'm always suspicious of items with big names attached.