sentences:  At least 170 cartloads of stone are mentioned, and the bricks may have been brought to the site along the river by boat, while some of the timber was brought from Great Yarmouth.The total cost of the building from these records, including labour, came to around £36.The number of bricks used in the tower, however, was probably twice the listed number purchased, and the city may therefore already have stockpiled some bricks on the location before the build.