https://www.pontellilegnami.it/c.asp?c=perline_perline_pino&i=47_50
perline pino, Pontelli Legnami Torino
perlinepinolegnamitorino
https://www.myartprints.co.uk/a/bacciopontelli/thestudyoffederigodamonte-1.html
The Study of Federigo da Montefeltro, Du - Baccio Pontelli as art print or hand painted oil.
The Study of Federigo da Montefeltro, Duke of Urbino: intarsia panelling depicting a reading stand i - Baccio Pontelli