Contains typescript of Blundell Jones's translation of Kroll's book Composants: Must Architecture be Industrialised, and handwritten translations of part of the book; letter and postcard from Kroll to PBJ, 1980s; photocopies of articles by and about Kroll (mainly in French); translations of other articles by PBJ; architectural plans and drawings of the rehabilitation/renovation of housing in the Luth quarters in Gennevilliers, Paris by Kroll; and handwritten notes of questions for Kroll.