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It has a really low x height that makes it very readable at the smaller size. Thanks for any help. Doug

Maybe I need new glasses, you know, these a kilo per glass, but I don't see any x-height here. Just caps.

And, what's more, the lower the x-height the less readable the type. Specially at smaller sizes.

Have you bothered checking out Times Roman? You may already own it...
http://www.myfonts.com/search?search%5Btext%5D=times