Spas were marketed with their health benefits, but they were also a business, like Bad Central for its owner, commercial counsellor Julius Tallberg. Prominent businessmen and figures from the banking world met at Bad Central in an informal setting. The spa was so well known that the address was not indicated in the advertisement. As it was aimed at wealthier people, it was only advertised in Swedish-speaking newspapers. An advertisement in Hufvudstadsbladet on 19 August 1901.
