On Thu, 12 Apr 2012 18:12:45 +0100, Roland Perry wrote:
In message , at 19:03:49 on
Thu, 12 Apr 2012, Jarle H Knudsen remarked:
http://www.flickr.com/photos/dubidubno/7071179813/
It's a gauge against which the rails are adjusted if re-ballasted.
To assure the carriage floors are alligned with the platform edge or for
some other reason?
--
jhk