MonoMonday: Square,Blackheath

This plain black square, reminiscent of some things I have seen in galleries, is on the wall of the old post office, now a clothing shop.
To the naked eye the square doesn't appear to have anything written on it but when I brought out the detail in post processing I think I can make out the words: Imported Gifts, Clothing, Antiques, Old Wares.
Thanks for hosting Laurie.