The HSB has two fire extinguisher water cars so that in case of a fire in the summer the necessary amount of water is available especially quickly to extinguish a fire. The LGB model is an authentic reproduction of such an HSB fire extinguisher water car and has a prototypical paint scheme and lettering. This model is coming out in a one-time series in 2012 on the occasion of the 125th anniversary of narrow gauge railroading in the Harz region. The model includes a booklet about the history of narrow gauge railroading in the Harz region and also a certificate of authenticity. Length over the buffers 30 cm / 11-13/16".