Yes that's the look of Nadia I remember. I worked with her on a BBC training programme in Kensington House about 1970. Steve Benbow, Brian Brocklehurst, a.n. other, and the wonderous voice of Nadia Cattouse (whose final syllable sounds like 'moose').
There was a Gershwin song, Port Mahon, and another, perhaps Brel, number.
She was wonderful!