Carved on one single piece of wood, carved and painted on both the sides, written in Chinese on right panel, its excellent craftsmanship, The history is 200 AD, Ming, The Romance of Three Kingdom Period. Three General had a battle with General Lu Bu. 

Please see the letter from Dr. Hsuan Chung Ph.D (Chinese literature) attached with the above pictures for more details.
Do not hesitate to ask for any questions.

Please check more pictures: https://imgur.com/a/2JNIwIZ