This is a vintage Japanese architectural 4 panels called Shoin panel used at Shoin style room at Nihon-ma, traditional Japanese room with tatami from mid.1900's.
It is made of Hinoki (Cypress). Usually, connecting panels and ranma complete one picture but having a nice simple geometrical pattern, they can be displayed individually.
67 1/2"W x 12 1/4"H long panel
17 1/2"W x 40"H each of the 4 panels