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The thermal bath at Sliven Mineral Baths after the renovation in 1941. Undated postcard, possibly 1940's. Старият Сливен в албуми [12 May 2021]. In Facebook Group page
The thermal bath at Sliven Mineral Baths after the renovation in 1941. Undated postcard, possibly 1940's. Старият Сливен в албуми [12 May 2021]. In Facebook Group page