["Red cameo / incised" (accompanying note)]
The M.H. Spielmann Collection; given to the Garrick Club by Lincoln Kirstein, 1983
Ashton (with the help of Gertrud Seidmann), "The M H Spielmann Collection of Shakespeare Portraits." c.1982. Unpublished manuscript in the Garrick Club Library, Garrick Club Box 4, No.31
A microscopic bust of Shakespeare in profile looking to right, carved into polished amber cornelian with red veins.