BD 179742bwcr

Class 97.5 0-10-0RT 97502 on display at Bochum Dalhausen Railway Museum. Note the two sets of valve gear. The upper set drove a cog wheel which, via gears drove the cog for the rack system of the 1 in 10 Honau–Lichtenstein rack railway for which 4 such locomotives were built. 1 locomotive was destroyed in WWII, the other 3 (including this one) have been preserved.

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