In Oslo there is an old tram consisting of a motorcar and a trailer, both built in 1913. This tram is operating on Oslo’s tramway network on each first Sunday every month. The tram is free of charge, and it stops at all regular halts on the route. It is the only operational vintage tram in Oslo at the moment, and cancellations due to necessary repairs or lack of qualified staff may occur. Here you can find some more info about it.