That is a custom font of their own called 'Peters Editions'.

Some alternatives: Birch, Latin Compressed (Wooden Type Fonts and Monotype), Latino Elongated, Rocky Compressed

thank you so much! I will look into the alternatives.

@Nick Cook.. Is it possible to get the 'Peters Editions' font?

No it isn't. I digitised it a few years ago for Peters Editions. I think this example is before the work I did - from what I remember it was more condensed than this.

Okay, thanks for the info.