A 5 x7 inch glass plate negative of two terracota busts of Edward The Black Prince (RCIN 37067), WC sculpture 194 and Edward VI (RCIN 53346), WC sculpture 195.

Of the eleven terracotta busts that Rysbrack completed for Queen Caroline's library at St James's Palace only three survive: Edward the Black Prince (RCIN 37067), Edward VI (RCIN 53346) and Queen Elizabeth I (RCIN4 5101). The others were destroyed, and this one partially damaged, in 1906 when the shelf on which they stood collapsed. The busts had been moved to the Orangery at Windsor Castle in 1825 when Queen Caroline's library at St James's Palace in London was demolished.