... have another go and try and lay the core lines out on top of a Google Earth photo. 3470_191537_030000000.png Last edited on 19 Oct 2017 20:46 by Richie Kynaston posted: 19 Oct 2017 21:58 from: Martin Wynne edit: egg on face dept. I have obviously got the wrong end of the station below. Hi Richie, There is a 1940 revision of the OS 25" map on the NLS web site. Templot can load these maps as background picture shapes at the correct scale for your model. 2_191639_250000000.png I don't know how that compares with your period. Possibly the track centres are still the same, and could be found by overlaying tracks. You could also determine the diamond sizes and angles. Here is the link to paste into the screenshot URL box. It is a 25" County Series map: http://maps.nls.uk/view/120934149#zoom=6 &lat=7822&lon=7203&layers=BT... indeed is it even possible, in Templot or reality? Yes. ...