Quote Originally Posted by PhilipG View Post
Some stone is more porous than others. The stone for the building (the Great George Street Congregational Chapel) came from a quarry in Park Road.
I suppose to be strictly accurate the discolouration was due to over 100 years of soot, dirt and grime.
The name definitely comes from the colour of the building (before cleaning) - no other reason.
Fair enough. Cheers Philip.