Tree-ring width of Quercus species from historical object sample 6490B/04A, Netherlands, Vessem

Species: Quercus species; No of rings: 54; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 13; Last ring under bark: present物种：栎属（Quercus species）；年轮数：54；年龄未确定；木心：不适用；心材：完整；边材：完整；边材年轮数：13；树皮下的最外层年轮：存在