steam locomotive engine rack railway adhesion operation gears abt system drive rod dome rod cylinder external cylinder composite triebwerk meter track steam reach back light boiler steam boilers dfb steam railway furka - bergstrecke gradient beginning drive technology railway wheel blowing axis linkage pivot nostalgia chassis oldtimer operational summer operation station gletsch valais switzerland narrow gauge railway before beginning the rack cylinder steam weisshorn free pictures free photos free images royalty free free illustrations public domain
hpgruesen (pixabay.com)
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