Lithograph
Advertisement for the Hôtel of Triers in Bonn
Promotional flyer for the Hôtel of Triers at F. C. Simrock in Bonn, where Thayer likely stayed on one of his trips. With an engraving of the hotel on the Marktplatz and lists of "objects of curiosity in Bonn" and "Excursions and objects of curiosity near Bonn."