The Museum And The Palace at the From UBC to Kabul blog by Brian Platt has some photographs of the Kabul museum and its plinthed Henschel steam locomotive which were taken on 30 October 2010. One of the locos with a collapsed cab is also visible in one of the shots.

After wondering around inside for a while, I explored the outside yard of the museum. The most interesting piece was this, the rusted-out body of a steam engine. It’s from the 1920s when Amanullah, the leader of Afghanistan from 1919 to 1929, worked his ass off to modernize the country.
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However, Amanullah’s policies were attacked viciously by various conservative factions in Afghanistan, and eventually he was forced into exile in Europe. All that’s left of his grand train visions are sitting on the lawn of the National Museum.
Source: From UBC to Kabul, 2010-11-03