https://openlibrary.org/books/OL7164513M/Excavations_at_the_Kesslerloch_near_Thayngen_Switzerland
Excavations at the Kesslerloch near Thayngen, Switzerland by Conrad Merk | Open Library
Excavations at the Kesslerloch near Thayngen, Switzerland by Conrad Merk, 1876, Longmans, Green, and co. edition, in English
thayngen switzerland