I see Amber Rudd has announced that she's sceptical that the women affected by this would get any additional support. I wonder if she knows something ? Probably does !! Sorry I can't post the link but I understand it's been reported in a couple of the tabloids.
I vaguely remember reading that when the women’s pension age was put at 60 in 1940/2? the thinking was that men usually married women younger than themselves and so this would enable them to retire closer together. Of course a lot less women used to have independent state pensions and this was encouraged by the married woman’s ‘stamp’.