Aus einem Brief des Direktors der Herzog August Bibliothek Wolfenbüttel, 1972

I would finally like to thank you officially and very warmly for the facsimile edition of Ulrich Boner’s “Edelstein”. You have provided us with a wonderful, impressive and honourable work. We presented No. 1 to the Federal President on 2 November in the afternoon, and the President was extremely happy about this gift.

(Original in German)