This topic has already been referenced in the link below, but we can use this thread for the more specific tracking down of the question.
Post
RE: Lucretius' Appearance - Research into What He Looked Like
Here's another cameo in plaster that is supposed to be Lucretius.
epicureanfriends.com/wcf/attachment/3376/
c. 1820, Pietro Paoletti
As for Munro's ring, I have now traced its history for a period of more than 50 years. I will present my findings tomorrow evening
epicureanfriends.com/wcf/attachment/3376/
c. 1820, Pietro Paoletti
As for Munro's ring, I have now traced its history for a period of more than 50 years. I will present my findings tomorrow evening
Joshua