My OH's got one - well, a flat-bar version - that she bought ~81 just before going to uni. In pretty good nick really - I overhauled the hubs/drivetrain some years back when she threatened to use it, but she still hasn't got back on it :/
Really needs new tyres 'cos the old ones are cracking up, but until it looks like she's actually going to get out on it they'll wait...
I *think* it's 5 speed..