So I tried looking at it around midday when the sun was at a low angle and 'bingo' I could read every name and date.The details have now been safely recorded.joboy
Well Margaret .. if you shon a torch directly on to the surface (as you normally would) you would see little .. but if you laid the torch full length (ie handle as well) on the face of the surface you would see any impression or defect that was there.You can try this out by selecting perhaps a painted wall in your home and seeing the number of imperfections there ... on what you thought may have been a very smooth surface.Joe