A letter from Commander C.E. Over R.N., Staff Ordnance/Engineer Officer, British Joint Services Mission (Navy Staff), Main Building, Washington 25, D.C. to Lieutenant P.K. McPherson [sic] R.N., Massachusetts Institute of Technology, Boston, Massachusetts dated 27th April 1955. This is a reply to a letter sent on 19th April and states that it is likely that the Navy will allow M'Pherson to extend his time at M.I.T. Letter from British Joint Services Mission relating to an extension of time