Letters and cables regarding the progress of mirror tests at Sir Howard Grubb, Parsons and Co. Ltd and arrangements for visits to the company by S.C.B. Gascoigne in 1973. There is correspondence of Redman with W.A. Goodsell, Gascoigne and D.S. Brown, and copies of letters from Gascoigne to D.S. Brown. The correspondence discusses tenders for the Cassegrain head; the Waterworth camera; Redman's report on his visit to Sir Howard Grubb, Parsons and Co. Ltd on 1 November 1972; primary mirror cell tests; mercury girdle trouble; Hartmann tests and measurements on the Herstmonceux GALAXY; preliminary assembly of the mounting in Japan; Coudé flats; testing the meniscus lens for the secondary mirrors; the Franco-Canadian telescope; shearing inter-ferometer tests; the erection and commissioning of the Anglo-Australian Telescope, to be supervised by J. Bolton; tabulated results of the measured surface errors of both sides of the meniscus lens, May 1973; Anglo-Australian Telescope Board changes; and the transport of the primary mirror.