I have uploaded the conference report for 1959 herehttps://archive.org/details/SpgbConferenceReport1959One extract to delight Alan, from Wood Green and Hornsey branch commenting;
Quote:
'We start from the fact that our present H.O., in a southern suburb far away from the commercial, educational and political centre for London, cost £4,000 in a dilapidated condition. Because for most members, a major journey is involved in getting there, it is not used to anything like its full extent. The 1957 conference was quite definite in expressing a desire for a central H. O., but now two years later, we are still stuck at Clapham.'…