Thank you for the conformation.
So, after 180 years, the brickwork is now irreversibly impregnated with spray paint.
There is a farm tunnel under the railway at keynsham absolutely covered in etchings of initials from the mid 1800’s. Very interesting insight into the time, and of definite historical value now. I can imagine the youth of the time using the same path to swim in the river, and deciding to leave their mark. The only difference is they simply took a chisel and not a spray can.
Can you imagine the reaction if the chisel became the new marking tool again? Considerably more of an irreversible act than a layer of paint.
Something to think about. (Although thinking about things in context seems vacant to many in this thread)