![Image](https://www.engramma.it/eOS/resources/images/114/114_tavola_39_busti_magnifico.jpg)
The attribution is wrong on this Warburg-related page:
Workshop of Verrocchio, Bust of Lorenzo de' Medici, clay, 1466 circa, Boston, Museum of Fine Arts [38.11]; Stefano Ricci, Bust of Lorenzo de' Medici, earthenware, ante 1825, Oxford, Ashmolean Museum, Fortnum Collection [38.12].
https://www.engramma.it/eOS/index.php?id_articolo=1550