Teaching model from the early 19th century depicting the Baptistery of St. John on Campo dei Miracoli in Pisa, Italy. The model was used as a tactile teaching model in the history and geography lessons at the Royal Institute for the Blind in Copenhagen during the first half of the 20th century. The model was purchased in Italy by a teacher at the Royal Institute for the Blind in Copenhagen and brought back to serve as a teaching model for the blind pupils.