Milano Roman.
http://e-daylight.jp/design/fonts/type/m/milano-roman.html

I don’t think it’s available in digital form.

There is a very bad freebie digitization.

For those who are curious, the other excellent book props are shown at Criterion and we added a few to the Fonts In Use collection.

Image Club Graphics had what I thought was a decent version of this typeface (1992). It's not available at FontShop, which carries some other ICG fonts, but it is available at some free font sites. @Stephen: Is this the one you described as a very bad freebie? It was $19 in ICG catalogs from the mid-90's.

I guess so.