Oborotanaya side. It looks like figure is drawn on the plywood. Your opinion - the time when it is applied? In two places on the front side (on her right shoulder and over his head is a crack). Best regards.

Plywood you or not - hard to say, it is necessary to clear the mud bevel end, then it will be clearly visible. Do you have a picture on the second photo is of a kind of box - that covers him from plywood, that's for sure. Your board is similar to the one that appeared in the http://forum.artinvestment.ru/showthread.php?t=66691: the same connection back in the middle. But in fact multi-layered plywood with cross-fiber direction of each layer is considered to be Russian invention (OS Kostovic, 1880-e gg.), Although the veneer began to produce with the 1850. And machine for its manufacture was invented in Sweden, father Alfred Nobel.