Railway company Knigl Preu Staatseisenbahn Epoch I Gauge H0 Elect system DC Details Accessory Downloads Steam locomotive series T 12 of the Royal Prussian Railway Administration Specifications General data Number of axles with traction tyres 1 Number of driven axles 3 Electrical Head light 2top light alternating with direction Interface Electrical interface on traction units type NEM 652 with plugin fixture Digital decoder Nein Measurements Length over buffer 135 mm