There is a lot of talk that you should never do headstone rubbings, with the digital camera so easy to
use you shouldn't really need to do a rubbing. If a headstone is difficult to read then spraying
it with water may make it easier to read or go back on a dull day or a sunny day which ever makes it easier to take
Ask the cemetery trust they may have a photo of the headstone that has been taken some time ago.