[Papers relating to both the work and history of Maudslay & Co. and Maudslay Sons & Field ( 1807-1902), and the work of the Maudslay Society (1920-71). These papers were largely collected by J. Foster Petree, a President of both the Newcomen Society (1951-53) and the Maudslay Society (1964-66). 3 boxes. Listing available]