Tower repairs ... continuedThe soft stone used to construct the tower can be carved into crisp and intricate designs, but it does not weather well. The decorative tracery in the openings of the bell chamber had suffered from the effects of wind, rain and frost.
Some of it had to be replaced entirely, but in other cases the orignal masonry was still in a reasonable condition, and new material was married up to it to make a neat repair.
The blocks forming masonry facings of the tower were originally pinned together using wrought iron dowels ("cramps") embedded in lead. In many places the iron cramps had rusted and expanded, blowing the face off the stone.
Damaged blocks and rusting cramps were cut out, and new stone indents carved to fit.