According to The Abbey of St Mary guidebook by E. Carey-Hill (Odibourne Press, 1985) “When the north cloister wall of 1890 was rebuilt in 1984, the carved stones were grouped according to architectural type”.

He goes on to say “Not all examples of each type have been exposed, as some are buried in the wall for better preservation. The majority of stones are from the Decorated period, c1280 – 1370, and from the Priory Church, which was given an extensive facelift at this time, including new windows. The length of the wall is approximately 95 feet.”