DescriptionTree cookie in Royal Ontario Museum 2023a.jpg
English: A "tree cookie" cross-section of a Coast Douglas-fir tree (Pseudotsuga menziesii var. menziesii) displayed in the Royal Ontario Museum in Toronto in 2023. The tree was over 500 years old when it was cut down in British Columbia in the 1890s. The markings were added in the 1920s.
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