The Singsaker Line had always had the lowest ridership of the three tram lines, and therefore it had been served using the oldest material—narrow cars with only wooden benches. The first Class 4 tram—no. 35—was put into service on 12 September 1952. Many people tried to time their trips into town to catch it; this could be quite difficult since there was only a one seventh chance. From December, the tram was taken out of service due to the amount of snow. This resulted in protest meetings, but the company did not have enough trams to use them on Line 3.