Zapf Humanist is the Bitstream version of Optima (someone correct me if i'm wrong) and this looks a lot like Optima to me.

thanks Simon, yep Optima is very close, but there are subtle differences, for example the upper and lowercase w in the regular weight and the single storey a in the italic. Perhaps this is an earlier non digitised cut of Otima? I have read of Matthew Carters "Optima Classified" but am unable to find a sample.

It was made in 1980 - that is pre-digital. It could be a different cut, i don't know enough about it.

Here is a MyFonts search, you might find something in here: http://new.myfonts.com/search/optima/fonts/