Cornwallis was created a Marquess in 1792, which gives a terminus post quem for this print.
Verso, bottom left-center, stamped in red ink, the mark of Henry F. Sewall, New York (1816-1896)(Lugt 1309); verso, lower center, stamped in violet ink, the mark of the MFA Harvey D. Parker Collection (Lugt 1870)
Henry F. Sewall, New York (1816-1896)(Lugt 1309); purchased by MFA November 1897
Harvey D. Parker Collection
- Possibly by Francesco Bartolozzi, Italian, worked in England and Portugal, 1728–1815
Not in de Vesme/Calabi (there is a portrait of "Marquis Cornwallis" listed in de Vesme/Calabi, but it is not this print)
Medium or Technique