Maple Room detail

Source:

SPB Dnevnik

https://spbdnevnik.ru/news/2021-08-13/taynyy-hod-basseyn-i-kover-vesom-400-kilogramm-interiery-v-tsarskom-sele-otkryvayutsya-posle-mnogoletney-masshtabnoy-restavratsii