 With the opening of the Dovre Line , Spisevognselskapet established dining @-@ car service on 25 June 1921 . In 1921 a train ride from <unk> to Trondheim lasted approximately 15 hours , and the average waiting time at each station was between 10 and 15 minutes . On 1 July 1925 dining service was introduced on the <unk> Line , from 1 July 1926 on the <unk> Line , from May 1934 on the <unk> Line and from 15 May 1936 on the Røros Line . In 1948 210 @,@ 000 meals were served on board , in addition to sandwiches and drinks . The company also offered a light breakfast on night trains on the <unk> , <unk> and Dovre lines . During the Second World War , dining @-@ car service was discontinued . 
