Norsk Spisevognselskap A/S, often abbreviated NSS or shortened to Spisevognselskapet, was a Norwegian state enterprise which operated restaurant carriages on Norwegian trains and restaurants at train stations and railway hotels. The company was established in December 1918, and started a catering service in 1919. Originally owned by the Norwegian Trunk Railway, it was acquired by the state in 1926. Meals served in the restaurant carriages were relatively expensive, although they were available to all passengers. In the 1950s, the company began using serving trolleys on trains. In January 1975, NSS merged with the convenience-store chain Narvesen Kioskkompani into a new company called Narvesen–Spisevognselskapet. This enterprise was partly owned by the Norwegian State Railways (NSB) and Fritt Ord, before it merged with the Reitan Group and was delisted from the Oslo Stock Exchange.
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