Vin Malone is quite right to applaud the reinstatement of the cobbles on Mary Street, (The Star, May 20, 2015).
He’s also right to bemoan the loss of the riverside wall to the Porter Brook.
What he describes as “baked clay residue” topping is also known as “crozzle”: the wall was a stone wall with a crozzle coping.
This is a building technique unique to Sheffield, and walls like this are becoming increasingly rare in the city.
I wonder if the demolition of this wall had planning permission, which it probably should have had, as Mary Street is in a Conservation Area?