There is a curled texture (picture) and “live” knots that have not fallen out with a diameter of up to 50 mm. “Healthy” knots (partially fused, puttied) up to 40 mm for every half meter of length. End cracks and cracks along the plane (puttyed) UP TO 100 mm. Presence of medullary rays. Changes in tones. There is no sapwood.