Is this the oldest working Steam Tram in the world??

Kitson Steam Tram number 7 Date Built 1881 Written Off - Acquired by THS Early 1960's From Christchurch Transport Board Restored Early 1960's. First went into service on the opening of the Ferrymead Tramway in January 1968. Kitson Steam Tram number 7 is probably the most iconic vehicle in the Society's collection - and is depicted on the Society's logo. (This vehicle is generally referred to as "Kitty" by Society members.) It is believed to be one of only three Kitson Steam Trams that remain in existence, and the only one still in operating order. Article from Otago Daily Times said - New Zealand's oldest steam-powered tram, and one of only three left in the world, is set to re-enter service at Labour Weekend. After an extensive five-year restoration, The Tramway Historical Society's 141-year-old Kitson tram will hit tracks again at Ferrymead Heritage Park from October 22. The society's project director, Alex Hunter, said the tram was repaired by some of its younger volunteers who were keen to see it going again. "It's lovely to drive, especially now we've got a few less knocks and bangs in it." Kitson Steam Tram number 7, or 'Kitty' as she's affectionately known, has had her boiler replaced and bodywork repaired and repainted. The tram is the only survivor of eight imported from the United Kingdom in 1881 and the only working example of three left in the world. In her past life, Kitty would haul trailers filled with Christchurch picnic-goers heading to Sumner Beach three times a day. Hunter said it wouldn't have been a fast trip, as the steam-powered tram trundles along at an average speed of just 15km/h.