Quite small, but could be the ticket for a lot of women C&Vers......
Wel,, it should be at least as old as from 1973 if she did uy it then. That's a really early one. the lack of top tube cable guides, shifter bosses and I suspect, bottle mounts is also a sign of its pre-80's age. Aside from the bike, the sewup (I can what looks like the base tape unravelling from the tires) wheelset looks to be quite special too, with the large flange hubs. What brand/model are the hubs? Is it a 5 speed at back? Any idea what the rims are? Nisi? Fiammes?
A very well preserved early Alan! Congratulations on the great moving sale find!

Chombi