Craven Dunnill Group as seen in St Magnus Cathedral

Doing a bit of research I found out that these tiles are also found at St Magnus Cathedral .They are made by Craven Dunnill and are 105mm square. We have  23 but most have a element of damage (the best ones are in the main photo). I have added photos of all of them

These four in the main picture are £90 and noted as picture 1 , 2-4 are £55 for the group 4 (each) &   for all 23  = £285