Yesterday I discovered an apparently unrecorded catalogue for an auction held at Dulwich, south London, by "Mr Shuttleworth". The front page of the 4-leaf catalogue is shown above; it mentions:
"several very beautiful 'MISSAL DRAWINGS' [...] from the Papal Sacristy [...] by the celebrated Miniaturist, Buonfratelli [...]"
Following the descriptions of lots 38-43 is the note that they:
"were spoils from the Papal Sacristy of the Vatican, at the last entry of the French into Rome, and were brought to England by the Abbate Celotti"