zengo hagi-awase 前後矧合

Also abbreviated to zengohagi 前後矧. A method of making a wooden statue where the statue is carved in two separate pieces to form the front and back of the figure, divided vertically, and more or less in line with the back of the ears.
Zengo hagi-awase is the simplest of the hollow joined block construction techniques known as *yoseki-zukuri 寄木造. Making the sculpture in separate parts allows for a lighter object and helps dry the wood. It also led to greater efficiency in production.