INSULATED wagon. Built in 1899 and numbered 1, it was the only one of its type built Service History : NTT In October 1899 a bogie insulated van was built and placed into traffic. In 1926, the class was relettered to NT. Obtained by the Puffing Billy Preservation Society By 1969, the vehicle was in the Menzies Creek Museum. Currently Located at Belgrave Station The NT is an insulated van. The wooden body (both sides and roof) was insulated with cowhair. It had two swinging doors either side in the middle, as have the NU vans. The van was painted white, in an attempt to reflect the summer heat. There was only one built for the narrow gauge lines. Vehicle Length 25 feet 2 inches ( 7671 mm) Coupled Length 27 feet 4 inches (8330 mm) Width 6 feet 3 inches (1905 mm) Weight 7 tons Capacity 10 tons Built 1899 Number Built 1 In use none To be restored 1Historic - Victorian Railways - Narrow Gauge Rolling Stock - Insulated Wagon 1NT Victorian Heritage Register (VHR) Number H2187 Puffing Billy Locomotives and Rolling Stock Collectiontimber constructed body wall cavity filled with horse hair for insulation The NT is an insulated van. The wooden body (both sides and roof) was insulated with cowhair. It had two swinging doors either side in the middle, as have the NU vans. The van was painted white in an attempt to reflect the summer heat. There was only one built for the narrow gauge.1nt1nt, puffing billy, insulated van