Hello! I am looking into ordering the unrevised German edition of Blumenberg's 'The Legitimacy of the Modern Age' (1966). As I understand, all editions after 1973 include his responses to Gadamer and Schmitt (among others). I know also that the book was published in 3 volumes at some point....do these volumes contain the responses? Or is it based on the unrevised text?
In short, if I want an unrevised edition, what should I tell my library to order?

Thank you!!!!!