The work was carried out according to the Written Scheme of Investigation, which required: " Initial laser scanning and photogrammetry, which were undertaken by SUMO Services & Aerial-Cam respectively, followed by a second series of surveys undertaken by Downland Survey " Detailed inspection and an additional photographic survey undertaken from a cherry picker " A written record was made of each site visit " The recording was based on photogrammetrical images " In addition, a photographic record will be maintained as part of the Watching Brief during future repair works Despite the amount of repair work, research and recording undertaken of the Leighton Buzzard Market Cross over the centuries, the structure still remains enigmatic. Although it is thought to have been funded by Chaucer's grand-daughter, the widow of the 1st Duke of Suffolk, in the later 15th century, no corroborating historical evidence has yet been discovered. Yet her extreme wealth would certainly make her a prime candidate as the benefactor. Stylistically the Market Cross is typical of the 15th century, although, if Rimmer is correct, a third storey was originally planned but never completed, and the pinnacle surmounting the structure fails to conform to the usual high standard of medieval architectural geometry. The ground plan is also out of kilter, as the sides are uneven. Nonetheless, the Cross would have fulfilled its purpose and provided a focal point for numerous civic and religious activities in the town. It's place in the community was clearly secure as it was even able to survive the iconoclastic instincts of the Parliamentarians in the 17th century. Of particular interest for this study was the origin(s) of the building stone used at different times and for different features of the structure. This and the nature of some of the later repairs has been clarified to a limited extent by the petrological analysis of the stone and close inspection of the structure from a cherry picker. However, not all of the queries have been resolved at this stage, due to the budgetary constraints impacting the surveying and analysis and the lack of detailed works accounts. What has been resolved is that the main body of the Market Cross is built of Wheatley and Headington Stone from Oxfordshire, and the statues were carved out of a local sandstone commonly known as Carstone. The stone used for the back of the niches appears to be of Totternhoe Stone, a light-coloured limestone that is foun...