... scanned at a known resolution Templot can do all the scaling for you. If not, it would help if you upload the photo here so that we can see what we are dealing with. Usually there is a scalebar on a map, or something on the map of known dimensions, and ideally the OS grid or margin data. What modelling scale are you using? regards, Martin. I am modelling in 00. The image is attached. Could the gap between the tracks be a workable scale? J Attachment: attach_1502_2058_IMAG0849.jpg 559 posted: 17 Sep 2012 23:45 from: Martin Wynne Hi Julia, That's an excellent map for use as a picture shape, thanks for uploading. We can probably establish the scale by getting the distance from the river bridge to the road bridge level crossing from modern maps. regards, Martin. Last edited on 17 Sep 2012 23:50 by Martin Wynne posted: 18 Sep 2012 00:37 from: Tony W Hi Julia. In the abscence of better info, your image is 72 DPI and ...