Ключевые слова: abstract, age, aged, ageing, annual, birch, board, circle, circular, concentric, crack, cracked, cross, cross section, cut, detail, grain, growth, hardwood, life, line, log, logging, material, nature, oak, old wood, older, pattern, pine, plank, ring, rough, round, saw, sawn, section, slice, structure, stump, surface, texture, textured, timber, time, tree trunk, trunk, wood, wood texture, year,